Download App

Electrostatics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics1 Mark
Question
Assertion  :   If a proton and an electron are placed in the same uniform electric field. They experience different acceleration.
Reason     : Electric force on a test charge is independent of its mass.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
✓

Answer

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

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 "M.C.Q (1 Marks)" from Electrostatics→Electrostatics — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Consider a magnetic dipole kept in the north to south direction. Let $P_1, P_2, Q_1, Q_2$ be four points at the same distance from the dipole towards north, south, east and west of the dipole respectively. The directions of the magnetic field due to the dipole are the same at:
→
An LCR series circuit with $100\Omega$ resistance is connected to an ac source of 200V and of frequency of $\frac{300 \text{rad}}{\text{s}}$. When only the capacitance is removed, the current lags behind the voltage by 600. When only the inductance is removed, the current leads the voltage by 60° the current through the circuit is:
→
The plane faces of two identical plano-convex lenses each having focal length of 40 cm are pressed against each other to form a usual convex lens. The distance from this lens, at which an object must be placed to obtain a real, inverted image with magnification one is(a) 80 cm (b) 40 cm(c) 20 cm (d) 162 cm
       
→
The plate current in a diode is zero. It is possible that:
→
Matter waves are:
→
A particle has a velocity $u$ towards east at $t = 0.$ Its acceleration is towards west and is constant. Let $x_A$ and $x_B$ be the magnitude of displacements in the first $10$ seconds and the next $10$ seconds:
→
Assertion  :  A transistor amplifier in common emitter configuration has a low input impedence.
Reason      : The base to emitter region is forward biased.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
→
The colour of a star is an indication of its   (a) Weight(b) Distance(c) Surface temperature(d) Size
       
→
Let V and E be the gravitational potential and gravitational field at a distance r from the centre of a uniform spherical shell. Consider the following two statements:
  1. The plot of V against r is discontinuous.
  2. The plot of E against r is discontinuous.
  1. Both A and B are correct.
  2. A is correct but B is wrong.
  3. B is correct but A is wrong.
  4. Both A and B are wrong.
→
A closely wound coil of $100$ turns and area of cross$-$section $1 \ \mathrm{cm}^2$ has a coefficient of self$-$induction $1 \ mH .$ The magnetic induction in the centre of the core of the coil when a current of $2 A$ flows in it, will be
→