PYQ Vault
EbooksTutor

Day 369: JEE Mains Physics

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

  1. Question 1

    Waves. Asked once: 2021 Paper 3 (same type asked 4 times) See all 4 of this type

    3
    A student is performing the experiment of resonance column. The diameter of the column tube is 6 cm6\text{ }cm. The frequency of the tuning fork is 504 Hz504\text{ }Hz. Speed of the sound at the given temperature is 336 m/s336\text{ }m/s. The zero of the metre scale coincides with the top end of the resonance column tube. The reading of the water level in the column when the first resonance occurs is:

    Tap an option to check your answer.

  2. Question 2

    Mechanical Properties of Solids. Asked once: 27 Jul 2022 (same type asked 3 times) See all 3 of this type

    28
    A square aluminium (shear modulus is 25×109Nm−225 \times10^{9}Nm^{- 2} ) slab of side 60 cm60\text{ }cm and thickness 15 cm15\text{ }cm is subjected to a shearing force (on its narrow face) of 18.0×104 N18.0 \times10^{4}\text{ }N. The lower edge is riveted to the floor. The displacement of the upper edge is ____ μm\_\_\_\_\ \mu m.

  3. Question 3

    Gravitation. Asked once: 11 Apr 2023 (same type asked 3 times) See all 3 of this type

    101
    A spaceship is launched into a circular orbit close to the earth surface. The additional velocity to be imparted to the spaceship in the orbit to overcome the gravitational pull will be (if g=10 m/s2g = 10\text{ }m/s^{2} and radius of earth =6400 km= 6400\text{ }km )

    Tap an option to check your answer.

  4. Question 4

    System of Particles and Rotational Motion. Asked once: 13 Apr 2023 (same type asked 3 times) See all 3 of this type

    117
    A light rope is wound around a hollow cylinder of mass 5 kg5\text{ }kg and radius 70 cm70\text{ }cm. The rope is pulled with a force of 52.5 N52.5\text{ }N. The angular acceleration of the cylinder will be___ rad s−2{rad\text{ }s}^{- 2}.

  5. Question 5

    Motion in a Plane. Asked once: 28 Jul 2022 (same type asked 3 times) See all 3 of this type

    21
    If the projection of 2i^+4j^−2k^2\widehat{i}+ 4\widehat{j}- 2\widehat{k} on i^+2j^+αk^\widehat{i}+ 2\widehat{j}+ \alpha\widehat{k} is zero. Then, the value of α\alpha will be ____\_\_\_\_.