Which one of the following statements about the aperture of a convex lens is <strong>CORRECT</strong>?
- A. It is equal to its radius of curvature.
- B. It is equal to its focal length.
- C. It is independent of its radius of curvature. ✓
- D. It is equal to half of its focal length.
Correct Answer: C. It is independent of its radius of curvature.
Explanation
The aperture of a lens refers to its effective diameter for transmitting light. It determines the amount of light entering the lens and is entirely independent of its radius of curvature or focal length.
Related questions on Physics
- The rule to determine the direction of a current induced in a coil due to its rotation in a magnetic field is :
- A car travels a total distance L. It travels half the distance with speed v_1 and the other half with speed v_2. The average speed of th...
- The linear momentum of a particle is conserved if :
- When a stone tied to a string is whirled in a circle, the work done on it by the string :
- Assume 'A' does 500 J of work in 'x' minutes and 'B' does 1000 J of work in 20 minutes. If the power delivered by 'A' is P_1 and 'B' is $P...