Physics Planets do not twinkle because Their distance from the earth does not change with time They are very far away from the earth resulting in decrease in intensity of light They are nearer to earth and hence we receive a greater amount of light. They emit light of a constant intensity Their distance from the earth does not change with time They are very far away from the earth resulting in decrease in intensity of light They are nearer to earth and hence we receive a greater amount of light. They emit light of a constant intensity ANSWER DOWNLOAD EXAMIANS APP
Physics Which physicists is the writer of the book 'A Brief History of Time'? Albert Einstein Stephen Hawking Isaac Newton Hans Bethe Albert Einstein Stephen Hawking Isaac Newton Hans Bethe ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following properties is found only in ferromagnetic materials ? Point in a particular direction Hysteresis Susceptibility independent of temperature Attracting a magnetic substance Point in a particular direction Hysteresis Susceptibility independent of temperature Attracting a magnetic substance ANSWER DOWNLOAD EXAMIANS APP
Physics The sensation of weightlessness in a spacecraft in an orbit is due to the Fact that spacecraft in the orbit has no energy Acceleration in the orbit which is equal to the acceleration due to gravity outside Absence of gravity outside Presence of gravity outside but not inside the spacecraft Fact that spacecraft in the orbit has no energy Acceleration in the orbit which is equal to the acceleration due to gravity outside Absence of gravity outside Presence of gravity outside but not inside the spacecraft ANSWER DOWNLOAD EXAMIANS APP
Physics Friction can be reduced by changing from Static to Dynamic Dynamic to Static Sliding to Rolling Rolling to Sliding Static to Dynamic Dynamic to Static Sliding to Rolling Rolling to Sliding ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity-time graph of a particle is represented by y = mt + c, then the particle is moving with Constant acceleration Varying acceleration Constant speed Constant velocity Constant acceleration Varying acceleration Constant speed Constant velocity ANSWER DOWNLOAD EXAMIANS APP
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