Physics The velocity of sound in air Increases with decrease of temperature Decreases with increase of temperature Does not depend on temperature Decreases with decrease of temperature Increases with decrease of temperature Decreases with increase of temperature Does not depend on temperature Decreases with decrease of temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Permissible noise level at Residential area during night time is : 80 dB (A) 75 dB (A) 55 dB (A) 45 dB (A) 80 dB (A) 75 dB (A) 55 dB (A) 45 dB (A) ANSWER DOWNLOAD EXAMIANS APP
Physics A needle or a pin floats on the surface of water because of Viscosity Surface tension Surface energy Adhesive force Viscosity Surface tension Surface energy Adhesive force ANSWER DOWNLOAD EXAMIANS APP
Physics A microscope used in pathological laboratories forms Diminished, real and erect image Magnified, virtual, erect image Magnified, virtual and inverted image Diminished, virtual and erect image Diminished, real and erect image Magnified, virtual, erect image Magnified, virtual and inverted image Diminished, virtual and erect image ANSWER DOWNLOAD EXAMIANS APP
Physics Fiber optics cable used in communication, works on the principle of Diffuse reflection of light Total internal reflection of light Regular reflection of light Refraction of light Diffuse reflection of light Total internal reflection of light Regular reflection of light Refraction of light ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of pure silicon is doped with aluminium, then The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type ANSWER DOWNLOAD EXAMIANS APP
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