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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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Draw the ray diagrams of (i) Simple microscope (ii) Compound microscope Refracting telescope.

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

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Why two tin cans with a string stretched between them could .

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What will happen to the Coulomb's force, if the distance between the two point charges is (i) doubled (ii) halved

asked Oct 22, 2017 in Physics by shamroz (41.5k 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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What is meant by the term total internal reflection?

asked Oct 18, 2017 in Physics by shamroz (41.5k 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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If reaction quotient Qc of a reaction is more than Kc. What will be the direction of the reaction?

asked Sep 26, 2017 in Chemistry by shamroz (41.5k points)

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Describe the characteristics of focus of a concave and a convex mirror.

asked Oct 18, 2017 in Physics by shamroz (41.5k 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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Define the following terms used in reflection of light

asked Oct 17, 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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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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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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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 a light pipe? Describe its uses.

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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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Define the following terms used in refraction:

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

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