Question Answers

Assertion: Total energy is conserved in moving a satellite to higher orbit. Reason : sun of change in PE and KE is same in magnitude and opposite in nature Assertion: Total energy is conserved in moving a satellite to higher orbit. Reason : sun of change in PE and KE is same in magnitude and [...]

Assertion: Angular speed of a planet around the sun increases, when it is closer to the sun. Reason: Total angular momentum of the system remains constant. Assertion: Angular speed of a planet around the sun increases when it is closer to the sun. Reason: Total angular momentum of the system remains constant. September 12, 2020 [...]

Assertion : A man in a closed cabin which is falling freely does not experience gravity. Reason : Inertial and gravitational mass have equivalence. Assertion : A man in a closed cabin which is falling freely does not experience gravity. Reason : Inertial and gravitational mass have equivalence. September 12, 2020 Category: AIIMS Last 24 [...]

Assertion: The length of the day is slowly increasing. Reason: The dominant effect causing a slowdown in the rotation of the earth is the gravitational pull of other planets in the solar system. Assertion: The length of the day is slowly increasing. Reason: The dominant effect causing a slowdown in the rotation of the earth [...]

Assertion : The earth without atmosphere would be inhospitably cold. Reason : All heat would escape in the absence of atmosphere. Assertion : The earth without atmosphere would be inhospitably cold. Reason : All heat would escape in the absence of atmosphere. September 12, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics [...]

Assertion : Planet is a heavenly body revolving round the sun. Reason : Star is luminous body made of gaseous material. Assertion : Planet is a heavenly body revolving round the sun. Reason : Star is luminous body made of gaseous material. September 12, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics [...]

Assertion : The time period of revolution of a satellite around a planet is directly proportional to the radius of the orbit of the satellite. Reason : Artificial satellite follow Kepler’s laws of planatary motion. Assertion: Water kept in an open vessel will quickly evaporate on the surface of the moon. Reason The temperature at [...]

Assertion : At pole value of acceleration due to gravity (g) is greater than that of equator. Reason : Earth rotates on its axis in addition to revolving round the sun. Assertion : At pole value of acceleration due to gravity (g) is greater than that of equator. Reason : Earth rotates on its axis [...]

Assertion : If a pendulum falls freely, then its time period becomes infinite. Reason : Free falling body has acceleration, equal to ‘g’. Assertion : If a pendulum falls freely equal to 'g'. then its time period becomes infinite. Reason : Free falling body has acceleration September 12, 2020 Category: AIIMS Last 24 Years Solved [...]

Assertion: The comets do not obey Kepler’s laws of planetary motion. Reason: The comets do not have elliptical orbits. Assertion: The comets do not obey Kepler’s laws of planetary motion. Reason: The comets do not have elliptical orbits. September 12, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions [...]