Physics A star appears twinkling in the sky because of Diffraction of light by atmosphere Scattering of light by atmosphere Refraction of light by atmosphere Reflection of light by atmosphere Diffraction of light by atmosphere Scattering of light by atmosphere Refraction of light by atmosphere Reflection of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following characteristics of light remains unchanged when light travels from vaccum enters water Amplitude Speed Wavelength Frequency Amplitude Speed Wavelength Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics A standing wave occurs when A wave reflects upon itself The amplitude of a wave exceeds its wavelength Two waves overlap The speed of the wave is zero or near zero A wave reflects upon itself The amplitude of a wave exceeds its wavelength Two waves overlap The speed of the wave is zero or near zero ANSWER DOWNLOAD EXAMIANS APP
Physics The weight of a body acts through the centre of Mass Gravity Both (A) and (B) Buoyancy Mass Gravity Both (A) and (B) Buoyancy ANSWER DOWNLOAD EXAMIANS APP
Physics At boiling point of liquids, its Vapour pressure decreases Temperature remains constant Temperature increases Atmospheric pressure increases Vapour pressure decreases Temperature remains constant Temperature increases Atmospheric pressure increases ANSWER DOWNLOAD EXAMIANS APP
Physics What principle/law explains the working of the hydraulic brakes in automobiles ? Posieulle's principle Archimedes' principle Pascal's law Bernoulli's law Posieulle's principle Archimedes' principle Pascal's law Bernoulli's law ANSWER DOWNLOAD EXAMIANS APP
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