Explain virtual image?
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What is sound velocity?
If a body is hung from a spring balance first at the poles and then at the Equator, why do the readings of the balance change ?
How we are getting light from electrical bulb.Please brief in detail.
Explain how the height of a mountain is approximately measured by means of thermometer readings ?
What is the purpose served by ventilation in building ?
How does the towel dry out hands ?
While at berkeley, melvin calvin used this radioisotope to decipher many of the complex processes of photosynthesis:
What is the dramatic increase in amplitude called when the frequency of forced vibrations on a body matches the bodys natural vibration frequency?
How does a sound wave travel in air?
why velocities of x rays and gamma rays are same inspite they have different wavelengths and frequencies
Which element has the lowest melting point?
Explain about Electron microscope?