Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 20 J 400J 40J 200J 20 J 400J 40J 200J ANSWER DOWNLOAD EXAMIANS APP
Physics Green house effect is the heating up of the Earth's atmosphere which is due to G-rays X-rays The ultraviolet rays The infra-red rays G-rays X-rays The ultraviolet rays The infra-red rays ANSWER DOWNLOAD EXAMIANS APP
Physics The purpose of choke in a fluorescent lamp is : To decrease the resistance Ro decrease the voltage momentarily To decrease the current flow To increase the current flow To decrease the resistance Ro decrease the voltage momentarily To decrease the current flow To increase the current flow ANSWER DOWNLOAD EXAMIANS APP
Physics When a strong beam of light is passed through a colloidal solution, the light will Pass unchanged Be absorbed Be reflected Be scattered Pass unchanged Be absorbed Be reflected Be scattered ANSWER DOWNLOAD EXAMIANS APP
Physics The bending of light when it passes around a corner or a slit is due to ________ Total internal reflection Reflection Refraction Diffraction Total internal reflection Reflection Refraction Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Among the following materials sound travels fastest in Vacuum Air Steel Water Vacuum Air Steel Water ANSWER DOWNLOAD EXAMIANS APP
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