Physics A television channel is characterised by Physical dimension of television screen Frequency of transmitted signal Size of picture tube Velocity of transmitted signal Physical dimension of television screen Frequency of transmitted signal Size of picture tube Velocity of transmitted signal ANSWER DOWNLOAD EXAMIANS APP
Physics Red light has a wavelength of 70 A°. In "nm" it is 70 nm 700 nm 0.07 nm 7 nm 70 nm 700 nm 0.07 nm 7 nm ANSWER DOWNLOAD EXAMIANS APP
Physics The height of a geo-stationary satellite from the Earth's surface is approximately : 30,000 km 42,000 km 36,000 km None of these 30,000 km 42,000 km 36,000 km None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the lowest frequency? Xrays Ultra violet rays Visible light Gamma rays Xrays Ultra violet rays Visible light Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. ANSWER DOWNLOAD EXAMIANS APP
Physics A storm is predicted if atmospheric pressure Rises gradually Falls suddenly Rises suddenly Falls gradually Rises gradually Falls suddenly Rises suddenly Falls gradually ANSWER DOWNLOAD EXAMIANS APP
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