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Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
Concept: undefined >> undefined
Give one relevant example for the following transformation of energy :
Chemical energy to light energy.
Concept: undefined >> undefined
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A plane mirror _________ reflects 100 percent light falling on it.
Concept: undefined >> undefined
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
Concept: undefined >> undefined
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the highest point .
Concept: undefined >> undefined
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is just in the middle .
Concept: undefined >> undefined
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the ground.
Concept: undefined >> undefined
State the changes in form of energy while producing hydro electricity.
Concept: undefined >> undefined
Select the correct alternative
A man standing in front of a plane mirror finds his image to be at a distance of 6 meter from himself. The distance of man from the mirror is
Concept: undefined >> undefined
Select the correct alternative
The image formed by a plane mirror is
Concept: undefined >> undefined
Select the correct alternative
The property due to which a light ray striking a surface is returned back into the same medium is called
Concept: undefined >> undefined
What do you mean by the term reflection of light ?
Concept: undefined >> undefined
The following diagram shows a point object O placed in front of a plane mirror. Take two rays from the point O and show how the image of O is formed and seen by the eye.
Concept: undefined >> undefined
State four characteristics of the image formed by a plane mirror.
Concept: undefined >> undefined
How is the position of image formed by a plane mirror related to the position of the object ?
Concept: undefined >> undefined
You are standing at a distance of 2 meters from a plane mirror.
What is the distance of your image from the mirror?
Concept: undefined >> undefined
You are standing at a distance of 2 meters from a plane mirror.
What is the distance between you and your image?
Concept: undefined >> undefined
What is meant by lateral inversion of an image in a plane mirror ? Explain it with the help of a diagram.
Concept: undefined >> undefined
Wirte down the letter C and I as seen in a plane mirror.
Concept: undefined >> undefined
