Light Reflection and Refraction Test

Result

Light Reflection and Refraction Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

No matter how far you stand from a spherical mirror, your image appears erect. The mirror may be

A
concave

B
convex

C
either plane or convex.

D
plane
Question 2
1 / -0

A ray of light travelling in air falls obliquely on the surface of a calm pond. It will

A
go into the water without deviating from its path

B
deviate away from the normal

C
deviate towards the normal

D
turn back on its original path
Question 3
1 / -0

The power of a lens of focal length 25 cm in diopter is

A
0.25 D

B
2.5 D

C
4.0 D

D
0.4 D
Question 4
1 / -0

If the magnification of a lens has a positive value, the image is

A
real f

B
virtual and erect 2f

C
inverted 2f

D
none of these
Question 5
1 / -0

An object is placed at the centre of curvature of a concave mirror. The distance between the image and the pole is

A
equal to f

B
greater than f but less than 2f

C
equal to 2f

D
greater than 2f
Question 6
1 / -0

An object is placed at a distance of 30 cm from a convex mirror of focal length 15 cm. The image formed is

A
20 cm from the pole

B
–10 cm from the pole

C
+ 10 cm from the pole

D
+ 60 cm from the pole
Question 7
1 / -0

If the magnification of a lens has a negative value, the image is

A
none of these

B
real and inverted

C
virtual

D
erect
Question 8
1 / -0

The image of the distant object is obtained on a screen by using a concave mirror. The focal length of the mirror can be determined by measuring the distance between

A
the object and the mirror

B
the object and the screen

C
the mirror and the screen

D
the mirror and the screen as well as that between the object and the screen.

User

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Re-Attempt Weekly Quiz Competition

Light Reflection and Refraction Test - 6

Result

Light Reflection and Refraction Test - 6

Score

-

Rank

-

SHARING IS CARING

Question 1

concave

convex

either plane or convex.

plane

Question 2

go into the water without deviating from its path

deviate away from the normal

deviate towards the normal

turn back on its original path

Question 3

0.25 D

2.5 D

4.0 D

0.4 D

Question 4

real f

virtual and erect 2f

inverted 2f

none of these

Question 5

equal to f

greater than f but less than 2f

equal to 2f

greater than 2f

Question 6

20 cm from the pole

–10 cm from the pole

+ 10 cm from the pole

+ 60 cm from the pole

Question 7

none of these

real and inverted

virtual

erect

Question 8

the object and the mirror

the object and the screen

the mirror and the screen

the mirror and the screen as well as that between the object and the screen.

User

Question Analysis

My Perfomance

Score

-

Rank

-

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