MEDIUM
7th CBSE
IMPORTANT
Earn 100

Read the following statements and choose the correct option.
(A) Planets are not luminous bodies.
(B) The sun is the nearest star to us from which the earth receives most of the light.

23.08% studentsanswered this correctly

Important Questions on Light

MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 17
Read the following statements and choose the correct option.
(A) Only a point source forms a complete umbra.
(B) An extended source of light forms both umbra and penumbra.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 18
The line joining the centre of curvature and pole of the mirror is called _____.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 19
Which of the following is (are) converging mirror(s)?
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 20
The image distance in case of a convex mirror can be _____.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 21
According to the laws of reflection,
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 22
One lumen = _____ candle power.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 23
An object is placed in front of a mirror. Arrange the following steps in sequential order to determine the nature of the mirror.
(A) Check whether the image formed is virtual or real.
(B) Check whether the virtual image formed is dimished, magnified or same size as that of the object.
(C) If the image formed is real, the mirror used is concave.
(D) If a magnified virtual image is formed, the mirror is concave; if a diminished virtual image is formed, the mirror is convex and if the size of the image is equal to the size of the object, plane mirror is used.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Physics>Chapter 4 - Light>PRACTICE QUESTIONS (CLASSROOM WING)>Q 28
 Which of the following is (are) natural source(s) of light?