Q3 of 36 Page 283

If you want to see an enlarged image of your face, will you use a concave mirror or a convex mirror?

For seeing an enlarged image I will use a concave mirror. When the face (AB) is held within the focus of a concave mirror then the enlarged image (A’B’) can be seen in the concave mirror. Note: If the face is at focus then enlarged image will be formed at infinity.


More from this chapter

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1

Name the type of mirror used as shaving mirror.

 2

What does the negative sign in the value of magnification produced by a mirror indicates about an image?

 4

In which of the following media: glass, water and diamond

(a) Light travels slowest.


(b) Light travels fastest.

 5

Given below are refractive indices of a few material media.

Rock salt - 1.54


Ice - 1.31


Dense flint glass - 1.65


Crown glass - 1.52


Arrange the media in the ascending order of optical density.