Physics Planets do not twinkle because They emit light of a constant intensity Their distance from the earth does not change with time They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light They emit light of a constant intensity Their distance from the earth does not change with time They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light ANSWER DOWNLOAD EXAMIANS APP
Physics Light from the Sun reaches us in nearly 2 minutes 8 minutes 16 minutes 4 minutes 2 minutes 8 minutes 16 minutes 4 minutes ANSWER DOWNLOAD EXAMIANS APP
Physics Lux is the SI unit of luminous intensity intensity of illumination luminous flux luminous efficiency luminous intensity intensity of illumination luminous flux luminous efficiency ANSWER DOWNLOAD EXAMIANS APP
Physics When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as Echo Beats Resonance Doppler effect Echo Beats Resonance Doppler effect ANSWER DOWNLOAD EXAMIANS APP
Physics The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ? 8.5 A 0.41666666666667 24 A 8.5 A 0.41666666666667 24 A ANSWER DOWNLOAD EXAMIANS APP
Physics A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. Refraction Total internal reflection Reflection Diffraction Refraction Total internal reflection Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
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