Special Relativity, Waves & Geometrical Optics (IFS (Forests Services) Physics (Mains)): Questions 1 - 3 of 3
Access detailed explanations (illustrated with images and videos) to 34 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time!
View Sample Explanation or View Features.
Rs. 150.00 or
How to register?
Question number: 1
» Special Relativity, Waves & Geometrical Optics » Waves » Damped Oscillation
Appeared in Year: 2013
Write in Short
A block of mass is attached to one end of a combination of two massless springs connected in series. The other end of the combination is fixed to a rigid support. The spring constatnts of the two springs are and , respectively. The block is free to move on a frictionless horizontal surface. If the block is pulled a little and then released, calculate the frequency of oscillation of the block. (Section A)
Question number: 2
» Special Relativity, Waves & Geometrical Optics » Geometrical Optics » System of Two Thin Lenses
Appeared in Year: 2010
Describe in Detail
Consider a system of two thin lenses of focal lengths and separated by a distance of in air. For an object of height placed at a distance of in front of the convex lens, find the size and position of the image. (Section A)
Explanation
Image from first lens is given as,
- Now, the distance between lenses is , therefore for second lens image of first lens becomes object of second lens;
- So, for second lens,
… (117 more words) …
Question number: 3
» Special Relativity, Waves & Geometrical Optics » Waves » Simple Harmonic Motion
Appeared in Year: 2013
Describe in Detail
A block of mass is attached to one end of a combination of two massless spring connected in series. The other end of the combination is fixed to a rigid support. The spring constant of the two spring are and , respectively. The block is free to move on a frictionless horizontal surface. If the block is pulled a little and then released, calculate the frequency of oscillation of the block.
Explanation
Series Combination of Springs
In figure a block of mass is connected with one end of the series combination of springs having spring constant . And other end of combination is connected with the rigid support.
Let displacement of block due to spring of spring constant is and the displacement of block due to the spring havi
… (204 more words) …