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Day 157: JEE Mains Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Kinetic Theory. Asked once: 6 Apr 2024 (same type asked 6 times) See all 6 of this type

    101
    Energy of 10 non rigid diatomic molecules at temperature TT is:

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  2. Question 2

    Moving Charges and Magnetism. Asked once: 23 Jan 2025 (same type asked 6 times) See all 6 of this type

    10
    Consider a moving coil galvanometer (MCG) : (A) The torsional constant in moving coil galvanometer has dimensions [ML2 T−2]\left\lbrack ML^{2}{\text{ }T}^{- 2} \right\rbrack (BB) Increasing the current sensitivity may not necessarily increase the voltage sensitivity. (C) If we increase number of turns (N)(N) to its double (2 N)(2\text{ }N), then the voltage sensitivity doubles. (D) MCG can be converted into an ammeter by introducing a shunt resistance of large value in parallel with galvanometer. (E) Current sensitivity of MCG depends inversely on number of turns of coil. Choose the correct answer from the options given below :

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  3. Question 3

    Atoms. Asked once: 9 Apr 2024 (same type asked 6 times) See all 6 of this type

    94
    A hydrogen atom in ground state is given an energy of 10.2eV10.2eV. How many spectral lines will be emitted due to transition of electrons?

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  4. Question 4

    Electromagnetic Induction. Asked once: 4 Apr 2024 (same type asked 6 times) See all 6 of this type

    117
    A rod of length 60 cm60\text{ }cm rotates with a uniform angular velocity 20rads−120rads^{- 1} about its perpendicular bisector, in a uniform magnetic field 0.5 T0.5\text{ }T. The direction of magnetic field is parallel to the axis of rotation. The potential difference between the two ends of the rod is _____ VV.

  5. Question 5

    Kinetic Theory. Asked once: 31 Jan 2024 (same type asked 6 times) See all 6 of this type

    1
    The parameter that remains the same for molecules of all gases at a given temperature is:

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