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Day 187: JEE Mains Physics

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

  1. Question 1

    Motion in a Straight Line. Asked once: 4 Apr 2024 (same type asked 4 times) See all 4 of this type

    112
    A bus moving along a straight highway with speed of 72 km/h72\text{ }km/h is brought to halt within 4 s4\text{ }s after applying the brakes. The distance travelled by the bus during this time (Assume the retardation is uniform) is ____ mm.

  2. Question 2

    Oscillations. Asked once: 1 Feb 2024 (same type asked 4 times) See all 4 of this type

    111
    A mass mm is suspended from a spring of negligible mass and the system oscillates with a frequency f1f_{1}. The frequency of oscillations if a mass 9 m9\text{ }m is suspended from the same spring is f2f_{2}. The value of f1f2\frac{f_{1}}{f_{2}} is _______

  3. Question 3

    Thermodynamics. Asked once: 13 Apr 2023 (same type asked 4 times) See all 4 of this type

    97
    The initial pressure and volume of an ideal gas are P0P_{0} and V0V_{0}. The final pressure of the gas when the gas is suddenly compressed to volume V04\frac{V_{0}}{4} will be: (Given γ=\gamma = ratio of specific heats at constant pressure and at constant volume)

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  4. Question 4

    Units and Measurements. Asked once: 9 Apr 2024 (same type asked 4 times) See all 4 of this type

    9
    The dimensional formula of latent heat is:

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  5. Question 5

    Alternating Current. Asked once: 5 Apr 2024 (same type asked 4 times) See all 4 of this type

    20
    An alternating voltage of amplitude 40 V40\text{ }V and frequency 4kHz4kHz is applied directly across the capacitor of 12μF12\mu F. The maximum displacement current between the plates of the capacitor is nearly:

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