NEET Physics: Questions 1829 - 1834 of 2099
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Question number: 1829
Question number: 1830
Question number: 1831
To calculate an unknown resistance with the help of a meter bridge why is it advised to change the gap with the known and unknown resistance?
To eliminate the resistance of the gap.
To eliminate the resistance of the connecting wire and copper strip
To include the resistance of the connecting wire and copper strip
To balance the known and unknown resistance.
Question number: 1832
Read the passage given below and answer the questions that follows:
It can be assumed that orbits of earth and mars are nearly circular around the sun. It is proposed to launch an artificial planet around the sun such that its apogee is at the orbit of mars while its perigee is at the orbit of earth. Let T e and T m be periods of revolution of earth and mars. Further the variables are assigned the meanings as follows.
M e → Mass of earth
M m → Mass of mars
L e → Angular momentum of earth around the sun
L m → Angular momentum of mars around the sun
R e → Semi major axis of earth’s orbit.
R m → Semi major axis of mars orbit.
M → Mass of the artificial planet
E e → Total energy of earth
E m → Total energy of mars.