Download App

Newton's Laws of Motion — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsNewton's Laws of Motion1 Mark
Question
Assertion : If the net external force on the body is zero, then its acceleration is zero.
Reason : Acceleration does not depend on force.
✓

Answer

(c) According to Newton's second lawAcceleration $=\frac{\text { Force }}{\text { Mass }}$ i.e. if net external force on the body is zero then acceleration will be zero

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Assertion & Reason" from Newton's Laws of Motion→Newton's Laws of Motion — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Assertion : No force is required by the body to remain in any state.
Reason : In uniform linear motion, acceleration has a finite value.
→
Assertion : As temperature of a black body is raised, wavelength corresponding to maximum energy reduces.
Reason : Higher temperature would mean higher energy and hence higher wavelength.
→
Assertion : Cars and aeroplanes are streamlined.
Reason : This is done to reduce the backward drag due to atmosphere.
→
Assertion : Work and heat are two equivalent form of energy.
Reason : Work is the transfer of mechanical energy irrespective of temperature difference, whereas heat is the transfer of thermal energy because of temperature difference only.
→
Assertion : A work done in moving a body over a closed loop is zero for every force in nature.
Reason : Work done does not depend on nature of force.
→
Assertion : The resistivity of a semiconductor increases with temperature.
Reason : The atoms of a semiconductor vibrate with larger amplitude at higher temperature there by increasing it's resistivity.
→
Assertion : The electrical conductivity of earth's atmosphere decreases with altitude.
Reason : The high energy particles (i.e. $\gamma$-rays and cosmic rays) coming from outer space and entering our earth's atmosphere cause ionisation of the atoms of the gases present there and the pressure of gases decreases with increase in altitude.
→
Assertion : When a bottle of cold carbonated drink is opened, a slight fog forms around the opening.
Reason : Adiabatic expansion of the gas causes lowering of temperature and condensation of water vapours.
→
Assertion : A quick collision between two bodies is more violent than slow collision, even when initial and final velocities are identical.
Reason : The rate of change of momentum determine that force is small or large.
→
Assertion : A.U. is much bigger than $\mathring A$.
Reason : A.U. stands for astronomical unit and $\mathring A$ stands from Angstrom.
→