EASY
7th Jammu and Kashmir Board
IMPORTANT
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We can obtain an enlarged and erect image by a convex mirror.

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Important Questions on Light

EASY
7th Jammu and Kashmir Board
IMPORTANT
A concave lens always forms a virtual image. 
EASY
7th Jammu and Kashmir Board
IMPORTANT
We can obtain a real, enlarged and inverted image by a concave mirror.
EASY
7th Jammu and Kashmir Board
IMPORTANT
A real image cannot be obtained on a screen.
EASY
7th Jammu and Kashmir Board
IMPORTANT
A concave mirror always forms a real image.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT

Match the items given in Column I with one or more items of Column II.

Column I

Column II

(A) A plane mirror

(i) Used as a magnifying glass.

(B) A convex mirror

(ii) Can form the image of objects spreads over a large area.

(C) A convex lens

(iii) Used by dentists to see an enlarged image of teeth.

(D) A concave mirror

(iv) The image is always inverted and magnified.

(E) A concave lens

(v) The image is erect and of the same size as the object.

 

(vi) The image is erect and smaller than the object.

MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
State the characteristics of the image formed by a plane mirror.
EASY
7th Jammu and Kashmir Board
IMPORTANT
Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
What is a virtual image? Give one situation where a virtual image is formed.