Question # 1

The light signal in Opticla fiber must be regenerated by advice called.

Choose an answer

Regenerator

Generator

Repeater

Diode

The magnifying power of a convex lens of focal lendth 10 cm is

Choose an answer

7

9.6

11

3.5

The types of optical fibres are

Choose an answer

Three

Four

Five

Six

The focal length of a concave lens is always

Choose an answer

+ve

-ve

Zero

None of these

Information carrying capacity of optical fibre called.

Choose an answer

Capacity

Band width

Immunity

Ability

If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.

Choose an answer

5

10

15

25

The units of magnifying power of microscope or telescope are.

Choose an answer

Metre

m^-1

dioptre

No unit

A convex lens acts as diverging lens if the object is placed at

Choose an answer

F

2F

Between F and 2 F

Within the F

For normal adjustment what is the length of astronomical telescope if focal lengths of astronomical telescope if focal lengths of objective and eye piece are 100 cm 20 cm respectively.

Choose an answer

10 cm

20 cm

5 cm

120 cm

In Michelson's experiment the relation used to find the speed of light is

Choose an answer

16 fc

1/16 fd

16 fd

16/fd

The minimum distance from eye at which an object appears to be distinct is

Choose an answer

Near point

Focal length

Image distance from lens

Object distance from lens

Multimode graded index fibre has a core whose diameter range lie from.

Choose an answer

5 to 50 micro meter

50 to 100 micro meter

40 to 1000 micro meter

50 to 10,000 micrometer

The optical fiber is covered for protection by a

Choose an answer

Glass Jacket

Plastic Jacket

Copper Jacket

Aluminum Jacket

The optical fibre is covered for protection by

Choose an answer

Glass jacket

Plastic jacket

Steel jacket

Diamond jacket

The magnification of a convex lens of focal length 5 cm is equal to.

Choose an answer

5

6

10

23

Using a graded Index fibre, the time difference is reduced to about.

Choose an answer

1 ns per km

33 ns per 100 km

33 ns per km

1 ns per 100 km

Multimode step index fibre is useful for

Choose an answer

Long distances

Short distances

Better quality

Low price

More Classes

Other Links

11th Class Part 1 Physics Chapter 10 Test Online MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer