Tell me how we are getting light from electrical bulb?
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Explain the Compound microscope ?
explain Tides
When is fluorescence strong?
Why is the earth not used as a return wire in a telephone system, while it is dine so in case of telegraph system.
Explain what is optical medium?
When water is boiled in a tin and its mouth is closed by a rubber cork, then on pouring cold water over the tin it is crushed. Why ?
Explain about Ultraviolet rays?
Explain what is cardiac output?
What is Translucent body ?
Mercury thermometer is constructed as shown in Figure The capillary tube has a diameter of 0.004 cm, and the bulb has a diameter of 0.250 cm. neglecting the expansion of the glass, find the change in height of the mercury column that occurs with a temperature change of 30.0 °C.
What is centrifugal force?
Explain the Modes of Transfer of Heat ?