Question # 1

If an object lies at focus point F in front of a converd lens, its image is formed at.

Choose an answer

2F

F

3F

Infinity

Critical angle is that incident angle in denser medium for which angle of refraction is.

Choose an answer

0 ^o

45 ^o

90 ^o

120 ^o

The final image formed by a simple microscope.

Choose an answer

Virtual and inverted

Real and erected

Virtual and erected

Real and inverted

The diameter of a lens is called

Choose an answer

Focal length

Aperture

Principle axis

Centre

The accepted value for speed of light in vacuum

Choose an answer

2.99 x 10⁸m - sec^-1

2.99 x 10⁶m - sec^-1

2.99 x 10⁸km - sec^-1

2.99 x 10⁸m - h^-1

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

Choose an answer

7

9.6

11

3.5

If an object is placed with in the focal length of a convex lens, its image is formed.

Choose an answer

Real

Inverted

Virtual

Smaller than object

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

Multimode step index fiber is useful for.

Choose an answer

Long distance

Sort distance

Very long distance

Infinite distance

The final image seen through ey piece in telescope is.

Choose an answer

Real, enlarge and inverted

Vertual, enlarge and erect

Virtual, enlarge and inverted

In Real, enlarge and erect

The first person who attempted to measure the speed of light was.

Choose an answer

Michelson

Hygen's

Galileo

Ability

If focal length of objective and eye piece is 0.5 m and 10 cm respectively then magnifying power of telescope will be.

Choose an answer

0.5

5

10

20

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

Choose an answer

Regenerator

Generator

Repeater

Diode

A layer over the central core of the jacke is called.

Choose an answer

Jacket

Plastic

Cladding

Rubber

the final image obtained by astronomical telescope is.

Choose an answer

Erect

Virtual

Magnified

All of these

Information carrying capacity of optical fibre called.

Choose an answer

Capacity

Band width

Immunity

Ability

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

More Classes

Other Links

Physics ICS Part 1 Chapter 10 Online Test 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