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Two sources are called coherent if they produce waves

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Important Questions on Light Waves

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JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE I>Q 13
When a drop of oil is spread on a water surface, it displays beautiful colours in daylight because of
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JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE I>Q 14
Two coherent sources, of different intensities, send waves which interfere. The ratio of maximum intensity to the minimum intensity is 25. The intensities of the sources are in the ratio
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CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE I>Q 15
The slits in a Young's double slit experiment have equal width and the source is placed symmetrically with respect to the slits. The intensity at the central fringe is I0. If one of the slits is closed, the intensity at this point will be
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CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE I>Q 16
A thin transparent sheet is placed in front of a Young's double slit. The fringe-width will
 
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CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE I>Q 17
If Young's double slit experiment is performed in water,
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CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE II>Q 1
A light wave can travel
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CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE II>Q 2
Which of the following properties of light conclusively supports wave theory of light?
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CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 17 - Light Waves>OBJECTIVE II>Q 3
When light propagates in vacuum, there is an electric field and a magnetic field. These fields