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What is critical angle?

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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1 answer 315 views

Differentiate between osmoregulation and thermoregulation.

asked Oct 16, 2017 in English by shamroz (41.5k points)

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Two people are listening to the same music at the same distance.

asked Oct 17, 2017 in Physics by sonia (36.5k points)

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Describe the use of totally internal reflecting prism.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Why is the driver's side mirror in many cars convex rather than plane or concave?

asked Oct 19, 2017 in Physics by shamroz (41.5k points)

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What do you mean by near point and far point of the eye?

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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The breathing becomes rapid and deep after exercise. Why?

asked Oct 16, 2017 in English by sonia (36.5k points)

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What do you mean by the term intensity level of the sound.

asked Oct 16, 2017 in Physics by sonia (36.5k points)

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What is difference between frequency and pitch? Describe their relationship graphically.

asked Oct 16, 2017 in Physics by sonia (36.5k points)

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Describe how you would determine the nature of the charge on a body by using electroscope.

asked Oct 19, 2017 in Physics by sonia (36.5k points)

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How the size of the pupil of our eye will change: (a) in dim light (b) in bright light

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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1 answer 161 views

Draw the ray diagram for image formation in human eye when object is placed at near point

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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Which property of sound waves determines its (a) Ioudness (b) pitch?

asked Oct 17, 2017 in Physics by sonia (36.5k points)

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What is telescope? Describe the working of a refracting telescope.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Why must the volume of a stereo in a room with wall-to-wall carpet be turned higher than in a room with a wooden floor?

asked Oct 17, 2017 in Physics by sonia (36.5k points)

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1 answer 240 views

What are the characteristics or important features of SHM?

asked Oct 16, 2017 in Physics by shamroz (41.5k points)

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In your own words, explain why light waves are refracted.

asked Oct 19, 2017 in Physics by shamroz (41.5k points)

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What is a light pipe? Describe its uses.

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What is meant by electrostatics or static electricity?.

asked Oct 19, 2017 in Physics by sonia (36.5k points)

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What is photograph enlarger? How does it work?

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