PYQ Vault
EbooksTutor

Day 238: JEE Mains Physics

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

  1. Question 1

    Electromagnetic Induction. Asked once: 2021 Paper 6 (same type asked 2 times) See all 2 of this type

    17
    The magnetic field in a region is given by B→=B0(xa)k^\overrightarrow{B}=B_{0}\left( \frac{x}{a} \right)\widehat{k}. A square loop of side dd is placed with its edges along the xx and yy axes. The loop is moved with a constant velocity v→=v0i^\overrightarrow{v}=v_{0}\widehat{i}. The emf induced in the loop is:

    Tap an option to check your answer.

  2. Question 2

    Electromagnetic Waves. Asked once: 26 Jul 2022 (same type asked 2 times) See all 2 of this type

    2
    A radio can tune to any station in 6MHz6MHz to 10MHz10MHz band. The value of corresponding wavelength bandwidth will be:

    Tap an option to check your answer.

  3. Question 3

    Motion in a Straight Line. Asked once: 29 Jan 2024 (same type asked 2 times) See all 2 of this type

    107
    A particle is moving in a straight line. The variation of position ' xx ' as a function of time ' tt ' is given as x=(t3−6t2+20t+15)mx =\left( t^{3}- 6t^{2}+ 20t + 15 \right)m. The velocity of the body when its acceleration becomes zero is :

    Tap an option to check your answer.

  4. Question 4

    Motion in a Straight Line. Asked once: 13 Apr 2023 (same type asked 2 times) See all 2 of this type

    96
    A passenger sitting in a train A moving at 90 km/h90\text{ }km/h observes another train B moving in the opposite direction for 8 s8\text{ }s. If the velocity of the train BB is 54 km/h54\text{ }km/h, then length of train B is:

    Tap an option to check your answer.

  5. Question 5

    Ray Optics. Asked once: 30 Jan 2024 (same type asked 2 times) See all 2 of this type

    25
    The distance between object and its two times magnified real image as produced by a convex lens is 45 cm45\text{ }cm. The focal length of the lens used is ____\_\_\_\_ cmcm.