| 1 |
If an object lies at focus point F in front of a converd lens, its image is formed at. |
- A. 2F
- B. F
- C. 3F
- D. Infinity
|
| 2 |
The first person who attempted to measure the speed of light was. |
- A. Michelson
- B. Hygen's
- C. Galileo
- D. Ability
|
| 3 |
The final image seen through ey piece in telescope is. |
- A. Real, enlarge and inverted
- B. Vertual, enlarge and erect
- C. Virtual, enlarge and inverted
- D. In Real, enlarge and erect
|
| 4 |
If an object is placed with in the focal length of a convex lens, its image is formed. |
- A. Real
- B. Inverted
- C. Virtual
- D. Smaller than object
|
| 5 |
Information carrying capacity of optical fibre called. |
- A. Capacity
- B. Band width
- C. Immunity
- D. Ability
|
| 6 |
The magnifying power of a convex lens of focal lendth 10 cm is |
|
| 7 |
Multimode step index fiber is useful for. |
- A. Long distance
- B. Sort distance
- C. Very long distance
- D. Infinite distance
|
| 8 |
The ability of reveal the minor details of an object under examination is called. |
- A. Resolving power
- B. Magnification
- C. Scattering
- D. Reflection
|
| 9 |
A layer over the central core of the jacke is called. |
- A. Jacket
- B. Plastic
- C. Cladding
- D. Rubber
|
| 10 |
Which is not the essential component of a spectrometer. |
- A. Collimator
- B. Telescope
- C. Turntable
- D. Microscope
|