Light Reflection and Refraction Test

Result

Light Reflection and Refraction Test - 25

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Question 1
1 / -0

The distance FP is the :

A
Radius of curvature

B
Focal length

C
Center of curvature

D
None

Solution

The distance FP is the focal length.
Question 2
1 / -0

Fill in the blanks:
Principal axis is also called ________ of the lens.

A
Optical axis

B
x-axis

C
y-axis

D
axis

Solution

Principal axis is also called optical axis of the mirror or lens .
Question 3
1 / -0

Image of our face in a plane mirror is :

A
Real

B
Magnified

C
Diminished

D
None of these

Solution

Image of our face in a plane mirror is virtual and of the same size as our face.
Question 4
1 / -0

The line joining the pole and the centre of curvature of a mirror is called the :

A
Aperture

B
Principal section

C
Principal axis

D
Pole

Solution

The line joining the pole and the center of curvature of a mirror is called the principal axis.
Question 5
1 / -0

A lens is called a thin lens, if its overall thickness is :

A
Small

B
Large

C
Infinitely large

D
None of these

Solution

A lens is called a thin lens if its overall thickness is small. Thin lenses are of six types.
Question 6
1 / -0

The angle of incidence is given by the angle :

A
PON

B
QOB

C
NOQ

D
AOP

Solution

Angle of incidence is measured as the angle between the incidence ray and the normal. hence the angle of incidence is given by the angle PON.
Option A
Question 7
1 / -0

What is the phenomenon of light coming back after hitting a smooth plane surface called?

A
Reflection

B
Refraction

C
Dispersion

D
Splitting

Solution

Reflection.
Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water, or polished metal, the light will reflect at the same angle as it hit the surface. This is called reflection.
Question 8
1 / -0

The point P is the:

A
Principal focus

B
Principal axis

C
Pole

D
None of these

Solution

The center of the reflecting surface of a spherical mirror is a point called the pole. It lies on the surface of the mirror. The pole is usually represented by the letter $$P$$.
Question 9
1 / -0

The refraction of light is commonly known as :

A
Bending

B
Scattering

C
Reflection

D
Interference
Solution
The refraction of light is commonly known as bending.
The refracted rays bend towards the normal when they enter from rarer to denser medium.
The refracted rays bend away from the normal when they enter from denser to rarer medium.
Question 10
1 / -0

The distance CP is the :

A
Center of curvature

B
Radius of curvature

C
Focal length

D
None of these

Solution

The distance CP is the radius of curvature.