Physics Interview Questions and Answers Pdf - 1

Question: 1

What are the factors on which refractive index depends?

The refractive index depends upon

a. Angle of deviation

b. Angle of incidence

c. Angle of refraction

Question: 2

What are the differences between a microscope and telescope?

Microscope

It magnifies the near objects.

The objective will be of shorter focal length.

The eyepiece will be of larger focal length.

Telescope

It magnifies and gets distinct image of a far off object.

The objective will be of larger focal length.

The eyepiece will be of smaller focal length.

Question: 3

What is the difference between concave and convex mirrors?

In a concave mirror, the outside of the spherical mirror is silvered. But in the convex mirror, the inside of the spherical mirror is silvered.

Question: 4

What are the uses of concave mirror?

Concave mirrors are used

(1) as a shaving mirror

(2) as a doctor’s head mirror

(3) in reflectors, in torches, head lights of cars and other vehicles.

(4) in astronomical telescopes.

Question: 5

What is looming?

It takes place in very cold regions or over the sea during cold winters and is called looming. The image in the looming is erected and it appears above the object.