Question # 1

Which is not the essential component of a spectrometer.

Choose an answer

Collimator

Telescope

Turntable

Microscope

Critical angle is that angle of incident ofr which angle of refraction is.

Choose an answer

90 ^o

45 ^o

42 ^o

24 ^o

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

The diameter of a lens is called

Choose an answer

Focal length

Aperture

Principle axis

Centre

Information carrying capacity of optical fibre called.

Choose an answer

Capacity

Band width

Immunity

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 magnifying power of an astronomical telescope is 10. If the focal length of objective is 100 cm, then what is the focal length of eye piece.

Choose an answer

10 cm

100 cm

1000 cm

5 cm

The optical fiber is covered for protection by a

Choose an answer

Glass Jacket

Plastic Jacket

Copper Jacket

Aluminum Jacket

The ratio of size of image and size of object is

Choose an answer

Focal length

Magnification

Resolving power

Principle focus

The units of magnifying power of microscope or telescope are.

Choose an answer

Metre

m^-1

dioptre

No unit

If a convex lens is used as a magnifying glass, whcih lens will give higher magnification that has.

Choose an answer

Short size

Long focal length

Large size

Short focal length

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

Choose an answer

5

6

10

23

Multimode step index fibre is useful for

Choose an answer

Long distances

Short distances

Better quality

Low price

In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.

Choose an answer

Real inverted

Virtual diminshed

Virtual inverted

Virtual erected

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

The speed of light was measured correctly by

Choose an answer

Galileo

Michelson

Newton

Maxwell

The device used to study the spectra from different sources of light is

Choose an answer

Telescope

Optical fibre

Spectrometer

Microscope

The light emitted from light emitting diode has wave length.

Choose an answer

1.1 micro meter

1.3 micro meter

1.5 micro meter

1.7 micro meter

More Classes

Other Links

Physics Fsc 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

Choose an answer