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Singasani Akshay
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Singasani Akshay
Asked: March 27, 2022In:
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How to find the position of the final image of the 1.0-cm-tall object in Physics? Can you find the position of the final image of the 2.0-cm-tall object?

educationfind the position of the final image of the 1.0-cm-tall object.find the position of the final image of the 2.0-cm-tall object.position
  1. Best Answer
    Singasani Akshay

    You will observe questions like find the position of the final image of the 1.0-cm-tall object in subjects such as Physics and science. You have to understand the question description properly first before attempting to solve the same. We have to solve it as per the Physics formulae that we use forRead more

    You will observe questions like find the position of the final image of the 1.0-cm-tall object in subjects such as Physics and science. You have to understand the question description properly first before attempting to solve the same.

    We have to solve it as per the Physics formulae that we use for while calculating values of mirror or lens.  

    Physics formulae that we use for while calculating values of mirror or lens

    (Image Source: https://www.physicsforums.com/threads/double-lens-system-converging-diverging.805553/)

    Solved: Find the position of the final image of the 1.0-cm-tall object (Using Formula)

    As per the question, (f)= focal length, (di)= distance

    Height= 1-cm, 

    f1 = 5-cm, 

    do = 4-cm 

    f2 = -8-cm 

    L = 12-cm 

    di = ?

    You have to put the values as follows:

    1/f = 1/ di ——————— Equation (i)

    Here, we have to find the value of di first of the 1st lens.

    Substitution the values of each digit in equation – (i), we get the following figure:

    1/5 = ¼ (0.25) + 1/ di

    By solving the above equation, we get di (distance) = -20-cm (Because it is located to the left side of 1st lens)

    Now, adding the distance between lenses, we have to go through the same formula for the 2nd lens as well.

    Here, 20 + 12 = 32-Cm.

    Now, using the same formula, we can put values as follows:

    1/ -8 = 1/32 + 1/di

    If you calculate the equation, you will get di= -6.4-cm. 

    Thus, the final image distance is -6.4-cm located to the left of the 2nd lens. 

    When we use magnification formula, -V1/ u1 * -V2/ u2

    = (20/4) x (6.4/32)

    = 1

    Image Height= M X Height of the Object

    = 1*1 = 1-Cm Ans

    It means the image so formed will be erect.

    How to Find the position of the final image of the 2.0-cm-tall object.

    Reference: A 2.0-cm tall object is positioned 40-cm away from a diverging lens with a focal length of 15 cm. Find the position and size of the image.

    If we go by the above formula, we have to calculate it as follows:

    1/f = 1/ di —————– equation (ii)

    We know that Concave Lens = Diverging Lens

    Here, Focal Length= 15-Cm

    The distance of the object from the lens= 40-cm

    Height of the object= 2.0-cm

    We have to find the position of the image along with its height of the object. 

    Going by the lens formula, we know:

    1/V – 1/U = 1/F

    By putting the values in above formula, we get the following:

    1/V – 1/ -40 = 1/ -15

    1/V = -1/5 – 1/40

    1/V= -11/120

    V= 10.9-Cm is the answer

    It means the image distance from the lens will be 10.9-cm. The use of negative sign before the distance means it will be formed to the left side or behind the lens. 

    For further analysis, we can also use magnification formula as here: 

    M = V/ U = h’/ h

    Putting the values in their respective positions, we get;

    -10.9/-40 = h’/2

    Solving the above sum; we get

    H’= 10.9/20 = 0.54-Cm

    It means the height of the image is + 0.54. And the image thus obtained will be erect and virtual. 

    Thus, the image distance from the lens is 10.90 cm, and the negative sign implies that it is formed behind the lens (on the left side).

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Muskan0
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Muskan0
Asked: January 21, 2022In:
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i just want to know that which university or college are providing good placement during this pandemic time.

careereducationstudentuniversity
  1. Best Answer
    Singasani Akshay

    In India, there are many universities that provide good placement opportunities. There are many private universities that provide good placement offers to their students. Placement statistics usually showcase things like the highest CTC offers, placement rate, and top recruiters who participated inRead more

    In India, there are many universities that provide good placement opportunities. There are many private universities that provide good placement offers to their students.

    Placement statistics usually showcase things like the highest CTC offers, placement rate, and top recruiters who participated in the placement drive of the universities.

    Know more: Want To Grow Professionally? 5 Golden Rules To Build A Successful career

    Students are mostly attracted to those universities that provide high scholarship placements. As the admission season approaches, universities that provide a high placement percentage with jobs in renowned organizations attract more applicants.

    But, there is high competition in the private universities in India that offer the best placements. Here is a list of top universities that provide high placements in top companies.

    Which university provides good placements in India?

    1. Chandigarh University

    This is one of the premier private universities in India, which is located in Chandigarh. It was founded in 2012, but in a short period of time, this university has established a good track record in terms of placement criteria.

    Students from this university have been placed in Fortune 500 companies, which has provided a CTC of more than 35 lacs PA. Students were placed in companies like Amazon, Microsoft, IBM, etc.

    2. VIT University

    Vellore Institute of Technology is one of the best technical universities in India which has good placement records.

    Read more: 7 Things To Do To Give Your career A Boost It Needs And Become Successful

    This can be seen from the fact that students in the 20–21 batch received about 4703 job offers. The university is also ranked in 28th position by the NIRF in the overall management and engineering categories.

    3. Amity University

    Amity University is also one of the top-ranked universities, which is located in Noida, Uttar Pradesh, and was established in 1986. The university has been conducting placements for many years.

    The university has also received participation from various famous companies. Of those, 1706 students were offered plum jobs in good sectors of the industry. The highest package was around 30 lacs PA, while the average was about 4.5 lacs.

    4. Sastra University

    Shanmugha Arts, Science, Technology, and Research Academy University is a deemed university and also one of the top universities in all of Tamil Nadu.

    In recent placement drives, 2400 Sastra university students got placed, and many of them got internship offers from GGO-D companies. Many students got good job packages, while the top one was 9.5 LPA.

    5. Manipal University

    This is one of the top companies that provide high placements and is located in Karnataka, where it was established in 1953. This university also provides UG and PG research courses like B.Tech, MCA, B.arch, and many more.

    Also Read: Best universities to Study Law in Ireland

    In the placement season of 2020, students received a good amount of 22.3 LPA. Top recruiters like Amazon, Bosch, Microsoft, and Samsung

    6. Thapar University

    Thapar University is an engineering and technology institute, which is ranked as the 29th best engineering institution in the NIRF ranking of 2020.

    This university has invited more than 250 recruiters this year, and the B.tech program records the highest number of placements as compared to other programs. The university has a placement record of 90%, in which the highest salary reached UNR 43 LPA.

    Know here: Why Is Everyone Talking About B Tech Artificial Intelligence?

    These are some of the best universities that provide high placements, but it also depends upon the competition and latest trends of that time.

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Rahul00
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Rahul00
Asked: January 12, 2022In:
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I just completed 12th so i am confuse of Which specialization is good in B.tech engineering? and what would be the scope of that?

bestengineeringuniversitycareereducationstudentuniversity
  1. Best Answer
    Singasani Akshay

    Every student who opts for science will think of getting into an engineering college. While you are in 12th standard, you should give the IIT-JEE exam, the entrance exam for engineering colleges. When you score good marks in the exam, you will get good colleges that offer engineering. It is the bestRead more

    Every student who opts for science will think of getting into an engineering college. While you are in 12th standard, you should give the IIT-JEE exam, the entrance exam for engineering colleges. When you score good marks in the exam, you will get good colleges that offer engineering. It is the best place to do engineering work.

    Read more: Why Is Everyone Talking About b tech Artificial Intelligence?

    In engineering, you have a choice of many streams, but you have to choose one of them that interests you. Engineering is a four-year course, so you should choose an activity that suits you so that you don’t lose your interest in it. There are streams like computer science, electrical, civil, electronics, and mechanical.

    Most of the time, students get into the stream that is in demand at that time. Computer science careers are booming nowadays, so I think you should opt for computer science. If you want to get into a good company that is product-based, But before you make any decision, there are things you must consider.

    What Are the Things To Consider While Choosing Best Course in B.Tech?

    1. Why are you choosing computer science? Before you choose computer science, remember that this requires good knowledge of coding. You must be good at analysis and have a habit of sitting in one position for long periods of time because you will be writing long codes.
    2. You must be sure why you should be able to do the engineering because it takes motivation and dedication to the engineering. It is not easy to become an engineer; you must meet 70 percent of the attendance criteria and pass the tests.
    3. In four years, you will study about 48 subjects. There will be practicals, doing lab records, and semesters that will test your patience.
    4. Most of the time, engineers don’t think about the fact that if you have taken the computer science branch, then you have to do regular coding, so you should brush up on your skills.

    For coding, you should be mentally strong because it takes a lot of time to master any language. In computer language, there are many languages like C and C++. Python is used to develop the software.

    Know more:  What Are The Reasons To Learn Python?

    After you complete and learn computer science engineering, you get into a company like a software engineer. There you will work on developing software for the company and also troubleshooting for it.

    However, coding does not only make you a software engineer; it also opens doors to other careers such as data science, data analyst, and a variety of other positions that work with software.

    The placements which colleges provide depend upon the reputation of the college. If you are from an IIT, you can get a handsome package of 1 crore if you get placed in a good company, and also, if you don’t belong to any reputed college, you can still get a package of a minimum of 5 lacs, which is quite good for a start.

    But if you think about getting a government job, then you should opt for more core subjects like electrical, mechanical, and civil.

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