Physics The magnifying power of an astronomical telescope can be decreased by Decreasing the focal length of the eyepiece Increasing the focal length of the objective None of these Increasing the focal length of the eyepiece Decreasing the focal length of the eyepiece Increasing the focal length of the objective None of these Increasing the focal length of the eyepiece ANSWER DOWNLOAD EXAMIANS APP
Physics According to the theory of relativity, which of the following always remains constant ? Space Time Length of an object Velocity of light Space Time Length of an object Velocity of light ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. ANSWER DOWNLOAD EXAMIANS APP
Physics Visible light has a higher frequency than Ultra violet X rays All listed here Radio waves Ultra violet X rays All listed here Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics The rate of flow of electric charge is measured in Ampere/coulomb Ampere-coulomb Ampere Coulomb Ampere/coulomb Ampere-coulomb Ampere Coulomb ANSWER DOWNLOAD EXAMIANS APP
Physics What are the particles emitted by radioactive element after 3 consecutive disintegration? 2 beta 2 alpha 1 alpha 1 beta 2 beta 1 alpha 2 alpha 1 beta 2 beta 2 alpha 1 alpha 1 beta 2 beta 1 alpha 2 alpha 1 beta ANSWER DOWNLOAD EXAMIANS APP