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Is there any characteristic of sound which does not depend upon the sensitivity of fhe ears of the listener?

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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1 answer 133 views

How does a concave lens or diverging lens can form a real image of a real object?

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

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1 answer 214 views

What are the main effects of smoking?

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

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1 answer 180 views

Explain refraction of waves with the help of ripple tank apparatus.

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

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Does tidal volume increase when workload is increased?

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

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1 answer 179 views

Write a note on one practical application of damped motion.

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

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Explain image formation with ray diagram, when the object is placed at 2F from the convex lens.

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

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1 answer 175 views

If the pitch of sound is increased, what are the changes in the following

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

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1 answer 205 views

Define excretion

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

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1 answer 127 views

We can recognize persons speaking with the same loudness from their voice. How is this possible?

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

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1 answer 123 views

What are the differences between real and virtual images?

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

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1 answer 173 views

Define the following terms: (i) Crest (II)Trough (iii) Compression (iv) Rare faction.

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

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How are focal length and radius of curvature related to each other?

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

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What is wave equation? Derive a relationship between speed, frequency and wavelength of a wave?

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

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1 answer 167 views

Describe ihe effect of change in amplitude on loudnes* and the effect of change in frequency on pitch of sound.

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

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1 answer 201 views

The amount of carbon dioxide is higher in exhaled air as compared to atmospheric air. Why?

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

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1 answer 118 views

How light is reflected through spherical mirrors?

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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Which mirror is used in motorcycles and automobiles?

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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Explain how sound is produced by a school bell?

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

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Explain the phenomenon of reflection of waves with the help of ripple tank apparatus.

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

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