physics
motion
Easy
Question
A person travels along a straight road for half the distance with velocity 
and the remaining half distance with velocity 
The average velocity is given by
The correct answer is:
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If a particle travel in a circular path of radius r, what will be the distance and displacements after completion of one revolution.
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A race horse runs straight north and covers a distance 12 m and turns east and travels a distance 5 m. Calculate the displacement.
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A lens always forms a virtual, upright, and diminished image of an object placed in front of it. It is a ____ lens.
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A concave lens forms a virtual, upright, and diminished image of an object ____.
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A lens can only form a virtual, upright, and diminished images irrespective of the distance between the lens and the object. It is a ____ lens.
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In the setup shown in the picture below, the sun rays are focused on a paper by a magnifying glass, which results in the paper catching fire. If the magnifying glass was replaced by a concave lens, the paper does not catch fire. Why?
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The angle between the incident ray and the emergent ray is not equal to ____ degrees when the light gets refracted through a spherical lens.
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A light ray bends ____ on entering a ____.
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The eye lens of a human eye is thicker in the middle as compared to the edges. It is a ___ lens.
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A magnifying glass is placed in the path of sun rays, and a sharp point-sized image of the Sun is obtained on a paper placed on the other side of the magnifying glass. This image is formed at the ___ of the glass.
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A lens can always form both real and inverted and virtual and upright images of an object placed in front of it. It is a ____ lens.
A lens can always form both real and inverted and virtual and upright images of an object placed in front of it. It is a ____ lens.
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