Physics A star appears twinkling in the sky because of Refraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere Diffraction of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere Diffraction of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Loudness of sound depends on Frequency Wavelength Pitch Amplitude Frequency Wavelength Pitch Amplitude ANSWER DOWNLOAD EXAMIANS APP
Physics The threshold frequency is the frequency below which : Photo current increases with voltage Photo current decreases with voltage Photo electric emission is not possible Photo current is constant Photo current increases with voltage Photo current decreases with voltage Photo electric emission is not possible Photo current is constant ANSWER DOWNLOAD EXAMIANS APP
Physics If lift is going up with acceleration, the apparent weight of a body is Equal to the true weight More than the true weight Less than the true weight May be more or less than true weight Equal to the true weight More than the true weight Less than the true weight May be more or less than true weight ANSWER DOWNLOAD EXAMIANS APP
Physics When two semiconductors of pand n-type are brought in contact, they form p-n junction which acts like a/an Conductor Rectifier Oscillator Amplifier Conductor Rectifier Oscillator Amplifier ANSWER DOWNLOAD EXAMIANS APP
Physics The impurity atoms with which silicon should be doped to make p-type semiconductors are Phosphorus Germanium Antimony Boron Phosphorus Germanium Antimony Boron ANSWER DOWNLOAD EXAMIANS APP
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