Question 1

In ________________ mirror all rays of light parallel to principal axis diverges after reflection and appear to come from  the principal focus

Accepted Answer

convex

Answer

concave

Answer

plane

Question 2

_____________________________ mirrors are used in reflector-type telescope.

Accepted Answer

Concave

Answer

Plane

Answer

Convex

Question 3

Is this person using a convex or concave mirror?

Accepted Answer

Concave mirror

Answer

Convex Mirror

Answer

Plane Mirror

Question 4

A spherical mirror is a part ____________________________________________________ .

Accepted Answer

of a hollow glass sphere with one of the curved surfaces polished .

Answer

of a dense glass sphere with only outer surface polished.

Answer

of a hollow glass sphere with only inner surface polished

Question 5

The length of a straight line joining two opposite extreme points on the periphery of a spherical mirror is called  ______________________ .

Accepted Answer

linear aperture

Answer

optical centre

Answer

principal axis

Question 6

State the nature of the image formed.

Accepted Answer

virtual, erect and diminished

Answer

Real, erect and diminished

Answer

Virtual, inverted and magnified

Question 7

Concave mirrors are used in floodlights in cricket stadium. Where are the bulbs located?

Accepted Answer

Between  focus and pole

Answer

At focus

Answer

Between focus and centre of curvature.

Question 8

In case of concave mirror the centre of curvature lies _________________ the reflecting surface

Accepted Answer

in front of

Answer

outside

Answer

boundary of

Answer

in front of

Question 9

The diameter of the reflecting surface of a spherical mirror is called as ____________

Accepted Answer

centre of curvature

Answer

focal length of the curvature

Answer

radius of curvature

Question 10

In concave mirror, the size of the image depends upon

Accepted Answer

position of the object

Answer

shape of the object

Answer

size of the object

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