Question & Answer: Page 1

Yashwanth sai asks : If a person walks away from a mirror with a speed of 3m/s then with what velocity is he moving away in the mirror if the mirror is a plane mirror???

Tag : plane,mirror,walks,cbse,velocity,moving,speed,person

Category : CBSE | On : 2011-03-04 10:22:37

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Answers (2)

Yashwanth sai says :

06/03/2011 09:15:53

Answer is not same.

The answer is 3-(-3)=6m/s

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Utkarsh mudgal asks : How many images will be formed if the mirror is kept at 90 degree? Why?

Tag : formed,images,mirror,degree

Category : Grade 8 | On : 2010-10-21 02:37:30

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Vindhya duvvuri says :

21/11/2010 01:38:18

2 images

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Abhishek kumar asks : a concave mirror of radius r is kept on a horizontal table.water of r.i. xis poured into it upto a height H. WHERE SHOULD an object be placed so that its image is form on itself?

Tag : mirror,image,horizontal,radius,object,upto,table,water,poured,height

Category : Engineering Entrance | On : 2010-10-05 12:50:33

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Ankit gupta says :

14/10/2010 11:57:06

ANSWER IS -r/x.... the focal length of the combination is i/F = -2/fw -2/r.. find out 1/fw ( focal length of the water surface ) and then put the values.. in the above case v=u... on the left side of the mirror ..

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Vivek chotwani asks : what type of image form when plane mirror is broken into pieces

Tag : type,image,plane,pieces,broken,mirror

Category : CBSE & Others | On : 0000-00-00 12:00:00

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Answers (2)

Kumkum bhushan says :

00/00/0000 12:00:00

when mirror is broken it formn the same type of image as earlier . the image formed is not real annd in same size and shape.

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