Which of the following is NOT based on principle of relationship between volume and pressure of air?
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Friction is caused by the ______________ on the two surfaces in contact.
The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called
An object of 1.2 cm height is placed 30 cm before a concave mirror of focal length of 20 cm toget a real image at a distance of 60 cm from the mirror. What is the height of the image formed?
The quantum theory of light was given by
An earthquake of magnitude _________________ on Richter scale has thousand times more destructive energy than an earthquake of magnitude 4.
The work done in one complete revolution of the moon around the earth is equal to
An incident ray strikes a plane mirror at an angle of 20 deg with the mirror. The angle between the incident ray and reflected ray is ____.
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