Assertion : An electric field is preferred in comparison to magne… - Vidyadip

Question

Assertion : An electric field is preferred in comparison to magnetic field for detecting the electron beam in a television picture tube.
Reason : Electric field require low voltage.(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

(d) If the assertion and reason both are false.

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 Electron, Photon, Photoelectric Effect and X-Rays→Electron, Photon, Photoelectric Effect and X-Rays — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

A charge $(-q)$ and another charge $(+Q)$ are kept at two points $A$ and $B$ respectively. Keeping the charge $(+Q)$ fixed at $B,$ the charge $(-q)$ at $A$ is moved to another point $C$ such that $\text{ABC}$ forms an equilateral triangle of side $l.$ The net work done in moving the charge $(-q)$ is

In order to increase the capacity of a parallel plate condenser, one should introduce a sheet of between the plates (assume that the space is completely filled).

When light is incident on a diffraction grating the zero order principal maximum will be (a) One of the component colours(b) Absent(c) Spectrum of the colours(d) White

An electron of charge e moves parallel to uniform lines of force in magnetic field B with velocity v. Force acting on electron is :

What is the suitable material for electric fuse?

When NPN transistor is used as an amplifier(a) Electrons move from base to collector (b) Holes move from emitter to base(c) Electrons move from collector to base(d) Holes move from base to emitter

Equal mass of three liquids are kept in three identical cylindrical vessels $A, B$ and $C.$ The densities are $P_A, P_B, P_C$ with $P_A < P_B < P_C$ The force on the base will be$:$

A bar magnet is cut into two equal halves parallel to its magnetic axis. The physical quantity that remains unchanged is:

Hubble's law is related with (a) Comet(b) Speed of galaxy (c) Black hole(d) Planetary motion

Why does light travel as a wave?