PYQ Vault

Day 324: JEE Mains Physics

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

  1. Question 1

    Semiconductor Electronics. Asked once: 25 Jun 2022 (same type asked 3 times) See all 3 of this type

    17
    The photodiode is used to detect the optical signals. These diodes are preferably operated in reverse biased mode because.

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  2. Question 2

    Oscillations. Asked once: 2021 Paper 5 (same type asked 3 times) See all 3 of this type

    13
    Time period of a simple pendulum is TT inside a lift when the lift is stationary. If the lift moves upwards with an acceleration g/2g/2, the time period of pendulum will be:

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  3. Question 3

    Magnetism and Matter. Asked once: 2021 Paper 12 (same type asked 3 times) See all 3 of this type

    18
    The angle of Dip in a plane at an angle of 30∘30^{\circ} with Geographical meridian is 45∘45^{\circ}. The value of true Dip is

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  4. Question 4

    Kinetic Theory. Asked once: 2021 Paper 5 (same type asked 3 times) See all 3 of this type

    9
    The volume VV of an enclosure contains a mixture of three gases, 16 g16\text{ }g of oxygen, 28 g28\text{ }g of nitrogen and 44 g44\text{ }g of carbon dioxide at absolute temperature T. Consider R as universal gas constant. The pressure of the mixture of gases is:

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  5. Question 5

    Moving Charges and Magnetism. Asked once: 2021 Paper 6 (same type asked 3 times) See all 3 of this type

    3
    A charge QQ is moving dI→\overrightarrow{dI} distance in the magnetic field B→\overrightarrow{B}. Find the value of work done by B→\overrightarrow{B}.

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