Physics
How does an increase in the temperature affect the specific resistance of a :
(i) Metal and
(ii) Semiconductor?
Related Questions
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their:
(i) intensities and
(ii) frequencies?
(i) Define resonant vibrations.
(ii) Which characteristic of sound, makes it possible to recognize a person by his voice without seeing him ?
(i) If the lens is placed in water instead of air, how does it's focal length change?
(ii) Which lens, thick or thin has greater focal length?