Physics Why does the sea appear blue in colour? Scattering of the sunlight by water molecules Interference of the sun light from water surface Refraction of the sun light Reflection of the sun light from water surface Scattering of the sunlight by water molecules Interference of the sun light from water surface Refraction of the sun light Reflection of the sun light from water surface ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 30 db Above 50 db Above 80 db Above 120 db Above 30 db Above 50 db Above 80 db Above 120 db ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are pieces of Nickel Soft iron Cobalt Steel Nickel Soft iron Cobalt Steel ANSWER DOWNLOAD EXAMIANS APP
Physics Purpose of an optical filter is to Refract light of different colours Reflect lights of different colours Transmit or absorb light of different colours Dispense light into component colours Refract light of different colours Reflect lights of different colours Transmit or absorb light of different colours Dispense light into component colours ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is optical illusion? Rainbow Halo Earthshine Mirage Rainbow Halo Earthshine Mirage ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? The density of needle is less than that of water It will remain under the water, when it will displace more water than its weight Due to surface tension Due to its shape The density of needle is less than that of water It will remain under the water, when it will displace more water than its weight Due to surface tension Due to its shape ANSWER DOWNLOAD EXAMIANS APP