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Physics - Units and Dimensions

Practise 14 KVPY previous year questions on Units and Dimensions, compiled from papers spanning 2011 to 2020. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty KVPY tests.

  1. 1The time period of a body undergoing simple harmonic motion is given by T = p a D b S c , where p is the pressure, D is density and S is sur2020 (SB/SX)
  2. 2Assume that, the drag force on a football depends only on the density of the air, velocity of the ball and the cross-sectional area of the b2018 (SB/SX)
  3. 3A massive black hole of mass and radius is spinning with angular velocity The power radiated by it as gravitational waves is given by , wher19 Nov, 2017 (SB/SX)
  4. 4Stoke's law states that the viscous drag force experienced by a sphere of radius a, moving with a speed through a fluid with coefficient of 05 Nov, 2017 (SA)
  5. 5A neutron star with magnetic moment of magnitude is spinning with angular velocity about its magnetic axis. The electromagnetic power P radi05 Nov, 2017 (SB/SX)
  6. 6Using dimensional analysis the resistivity in terms of fundamental constants can be expressed as05 Nov, 2017 (SB/SX)
  7. 7The dimensions of the area A of a black hole can be written in terms of the universal constant , its mass and the speed of light as Here2015 (SB/SX)
  8. 8The dimensions of stefan-Boltzmann constant can be written in terms of Planck's constanth' Boltzmann constant and the speed of light as Here2014 (SB/SX)
  9. 9If the current through a resistor in a circuit increases by , the power dissipated by the resistor2013 (SA)
  10. 10Young-Laplace law states that the excess pressure inside a soap bubble of radius is given by where is the coefficient of surface tension of 2013 (SB/SX)
  11. 11The potential energy of a point particle is given by the expression . A dimensionless combination of the constant and is-2012 (SB/SX)
  12. 12A liquid drop placed on a horizontal plane has a near spherical shape (slightly flattened due to gravity). Let be the radius of its largest 2012 (SB/SX)
  13. 13Four students measure the height of a tower. Each student uses a different method and each measures the height many different times. The dat2011 (SB/SX)
  14. 14The Quantum Hall Resistance is a fundamental constant with dimensions of resistance. If is Planck's constant and e the electron charge, then2011 (SB/SX)

Frequently Asked Questions

1.How many questions are available for Units and Dimensions?

This chapter includes 14 questions compiled from KVPY papers spanning 2011 to 2020.

2.Are these questions only from KVPY, or from other exams too?

These are KVPY questions specifically for the Units and Dimensions chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Units and Dimensions an important chapter for KVPY Physics?

Units and Dimensions has appeared in 8 of the 11 years of KVPY papers covered here, with 14 questions across 11 papers - about one per paper it appears in.