Physics · 2015
NEET 2015 · 3 May · Code E · Q6
Two similar springs P and Q have spring constants K_P and K_Q, such that K_P > K_Q. They are stretched, first by the same amount (case a), then by…
Two similar springs P and Q have spring constants $\displaystyle \mathrm{K}_{\mathrm{P}}$ and $\displaystyle \mathrm{K}_{\mathrm{Q}}$, such that $\displaystyle \mathrm{K}_{\mathrm{P}}>\mathrm{K}_{\mathrm{Q}}$. They are stretched, first by the same amount (case a), then by the same force (case b). The work done by the springs $\displaystyle \mathrm{W}_{\mathrm{P}}$ and $\displaystyle \mathrm{W}_{\mathrm{Q}}$ are related as, in case (a) and case (b), respectively :
Official answer
(3)
$\displaystyle W_P>W_Q ; W_Q>W_P$
More from Work, Energy and Power
- Water falls from a height of 60 m at the rate of 15 kg / s to operate a turbine. The losses due to frictional forces are 10 % of energy. How much…2008
- A bob of heavy mass m is suspended by a light string of length l. The bob is given a horizontal velocity v_0 as shown in figure. If the string gets…2025
- A ball is thrown vertically downwards from a height of 20 m with an initial velocity v_0. It collides with the ground, loses 50 percent of its energy…2015
- A particle is released from height S from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The…2021
- A mass m moving horizontally (along the x-axis) with velocity v collides and sticks to a mass of 3m moving vertically upward (along the y-axis) with…2011
- The potential energy of a particle in a force field is: U=A/(r^2)-B/r, where A and B are positive constants and r is the distance of particle from…2012
- Two particles of masses m_1, m_2 move with initial velocities u_1 and u_2. On collision, one of the particles get excited to higher level, after…2015
- A bullet from a gun is fired on a rectangular wooden block with velocity u. When bullet travels 24 cm through the block along its length…2023
NEET (UG) 2015 Physics question, with the answer from NTA’s final answer key. Where our answers come from.