Physics Green house effect is the heating up of the Earth's atmosphere which is due to X-rays The infra-red rays The ultraviolet rays G-rays X-rays The infra-red rays The ultraviolet rays G-rays ANSWER DOWNLOAD EXAMIANS APP
Physics The bats can fly in the dark because They can see the objects in darkness They generate flashes of light They have weak legs and are likely to be attacked by predators They generate ultrasonic sound waves They can see the objects in darkness They generate flashes of light They have weak legs and are likely to be attacked by predators They generate ultrasonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics A spring is an example of which of these Newton's 1st law Newton's 3rd law Conservation of mass law Hooke's law Newton's 1st law Newton's 3rd law Conservation of mass law Hooke's law ANSWER DOWNLOAD EXAMIANS APP
Physics The number of waves per second in a sound is called ________ of that sound. Acceleration Velocity Displacement Frequency Acceleration Velocity Displacement Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics The spring constant of a spring depends on its Length only Length and its diameter Thickness, its diameter and its material Material only Length only Length and its diameter Thickness, its diameter and its material Material only ANSWER DOWNLOAD EXAMIANS APP
Physics A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments Depends on the speeds of various fragments Is infinity Depends on the total mass of all the fragments Is zero Depends on the speeds of various fragments Is infinity Depends on the total mass of all the fragments Is zero ANSWER DOWNLOAD EXAMIANS APP