NEET 2025:In a certain camera, a combination of four similar thin convex lenses are arranged axially

Description

In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power (p) and magnification (m) for each lens will be, respectively
(1) 4p and 4m 2) p4 and 4m. 3) 4p and m4 4) p4 and m4

Frequently Asked Questions

How to prepare for NEET Physics?

For NEET Physics preparation, focus on NCERT textbooks first, then move to reference books. Create a topic-wise study plan covering Mechanics, Thermodynamics, Electromagnetism, Optics, and Modern Physics. Solve previous years’ questions and take regular mock tests. Pay special attention to conceptual clarity and numerical problem-solving skills.

What is the difference between elastic and inelastic collisions?

In elastic collisions, both momentum and kinetic energy are conserved. Examples include collisions between hard billiard balls. In inelastic collisions, only momentum is conserved while some kinetic energy is converted to other forms like heat or sound. Most real-world collisions are inelastic to some degree.

How do lenses form images?

Lenses form images by refracting light rays. Convex (converging) lenses can form both real and virtual images depending on the object distance. Concave (diverging) lenses always form virtual, upright, and diminished images. The lens equation (1/f = 1/v + 1/u) relates the focal length (f), image distance (v), and object distance (u).

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