Physics It is dangerous to observe Solar eclipse with naked eyes because Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Cosmic rays reach eyes more during the eclipse Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Cosmic rays reach eyes more during the eclipse ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is seen after rain because of hanging molecules of water which act as Prisms Lenses Mirrors Slabs Prisms Lenses Mirrors Slabs ANSWER DOWNLOAD EXAMIANS APP
Physics The quality or tone of a musical sound produced by a stringed instrument depends on Length of the strings in the instrument Wave form of the sound Frequency of vibration Amplitude of vibration Length of the strings in the instrument Wave form of the sound Frequency of vibration Amplitude of vibration ANSWER DOWNLOAD EXAMIANS APP
Physics Supersonic plane fly with the speed of light less than the speed of sound greater than the speed of sound of sound of light less than the speed of sound greater than the speed of sound of sound ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is true of all simple machines? These make work easier Work input > work output Both A & B None of these These make work easier Work input > work output Both A & B None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Beta rays emitted by a radioactive material are Charged particles emitted by nucleus Electromagnetic radiations Neutral particles The electrons orbiting around the nucleus Charged particles emitted by nucleus Electromagnetic radiations Neutral particles The electrons orbiting around the nucleus ANSWER DOWNLOAD EXAMIANS APP