10th Light
10th Grade
•15 Qs
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10th Light
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Hard
mohit singh
Used 782+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The radius of curvature of a convex lens is 20cm. What is its focal length?
10 cm
20 cm
30 cm
40 cm
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Name the type of mirrors used in the following situations:
(i) Used by Dentist.
(ii) Rear-view mirror of vehicle
(i) Diverging mirror
(ii) Converging mirror
(i) & (ii) Both Converging mirror
(i) Converging mirror
(ii) Diverging mirror
(i) & (ii) Both Diverging mirror.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In the given ray diagram, which of the following path of the refracted ray is correct?
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
An object is kept at a distance of 4m in front of a spherical mirror, which forms its erect image at a distance of 1m
from the mirror. What is the magnification? Is the mirror concave or convex?
m = +4
Concave Mirror
m = -4
Convex mirror
m = - 1/4
Convex Mirror
m = +1/4
Convex Mirror
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A concave mirror produces a three times magnified image on a screen. If the object is placed 20cm in front of the mirror, What is the image distance?
-20 cm
-40cm
-60 cm
-10 cm
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calculate the power of a lens whose focal length is +40 cm. Also Identify the nature of the lens.
P = +0.25 D
Concave lens.
P = +2.5 D
Convex lens
P = +0.25 D
Concave lens
P = +2.5 D
Convex Lens
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Complete the path of the refracted ray of the given incident light on the given convex lens.
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