Subject :NSO Class : Class 6
Subject :NSO Class : Class 8
Ans 1:
Ans 3:
Class : Class 6
Concave mirrors are used in solar cookers. as concave mirrors are converging, the are used to concentrate the sun's heat on the utensil.
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Subject :NSO Class : Class 7
Ans 5:
Class : Class 9
ANSWER a. Refraction of light and the direction of refraction depends upon the density of the object because it reduces the speed of light.the Flint glass is more denSer than water and the air is no too denSer so there will be no refraction in the caSe of air. Therefore light refracts in water and the glass.
ANOTHER REASON!: Light travalS on a straight line .
Ans 6:
Class : Class 1
C is the correct answer. I teach Physics.
The angle of incidence entering and exiting is the same due to the same medium.
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 3
Ans 1: (Master Answer)
Class : Class 1
The correct answer is C. Because, after May, the consumption keeps getting lower which indicates that they started saving water.
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 4
Ans 4:
Class : Class 5
Screw is used to fasten things and not really used to lower and raise things.. Isnt D incorrect too?
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Subject :NSO Class : Class 3
