Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Remain unaffected Decrease Have its shape changed Increase Remain unaffected Decrease Have its shape changed Increase ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the lowest frequency? Visible light Xrays Ultra violet rays Gamma rays Visible light Xrays Ultra violet rays Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics For which one of the following does the centre of mass lie outside the body? A cricket ball A ring A fountain pen A book A cricket ball A ring A fountain pen A book ANSWER DOWNLOAD EXAMIANS APP
Physics Which planet has the lowest density? Neptune Jupiter Earth Saturn Neptune Jupiter Earth Saturn ANSWER DOWNLOAD EXAMIANS APP
Physics The radiant energy having lowest energy is Visible light UV rays Gamma rays Microwave radiation Visible light UV rays Gamma rays Microwave radiation ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS