Physics Lightning is produced when Strong opposite charges in different clouds break down the resistance offered by the intervening air Similar charges of electricity rush towards each other and then get repelled Water vapour produces electricity in the clouds Clouds strike against impurities in air and the friction burns up these impurities Strong opposite charges in different clouds break down the resistance offered by the intervening air Similar charges of electricity rush towards each other and then get repelled Water vapour produces electricity in the clouds Clouds strike against impurities in air and the friction burns up these impurities ANSWER DOWNLOAD EXAMIANS APP
Physics Microphone is a device which transforms the Sound signal into current signal Sound signal into light signal Current signal into sound signal Light signal into sound signal Sound signal into current signal Sound signal into light signal Current signal into sound signal Light signal into sound signal ANSWER DOWNLOAD EXAMIANS APP
Physics Ball pen functions on the principle of : Surface tension Gravitational force Viscosity Boyle's Law Surface tension Gravitational force Viscosity Boyle's Law ANSWER DOWNLOAD EXAMIANS APP
Physics Which physicists is the writer of the book 'A Brief History of Time'? Stephen Hawking Hans Bethe Albert Einstein Isaac Newton Stephen Hawking Hans Bethe Albert Einstein Isaac Newton ANSWER DOWNLOAD EXAMIANS APP
Physics What property of matter is momentum related to? Both A & B None of these Velocity Mass Both A & B None of these Velocity Mass ANSWER DOWNLOAD EXAMIANS APP
Physics Red light has a wavelength of 70 A°. In "nm" it is 7 nm 70 nm 700 nm 0.07 nm 7 nm 70 nm 700 nm 0.07 nm ANSWER DOWNLOAD EXAMIANS APP