The mass of a photon electron is: - Vidyadip

MCQ

The mass of a photon electron is:

A
$ 9.1 \times 10^{-27} \mathrm{ \sim kg} $.
B
$ 9.1 \times 10^{-29} \mathrm{ \sim kg} $.
✓
$ 9.1 \times 10^{-31} \mathrm{ \sim kg} $.
D
$ 9.1 \times 10^{-34} \mathrm{ \sim kg} $.

✓

Answer

Correct option: C.

$ 9.1 \times 10^{-31} \mathrm{ \sim kg} $.

The mass of a photon electron is $ 9.1 \times 10^{-31} \mathrm{ \sim kg} $.

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 Dual Nature of Radiation and Matter→Dual Nature of Radiation and Matter — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The number of photo-electrons emitted per second from a metal surface increases when

A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side on its principal axis, the intensity of light:

The magnetic flux linked with a circuit of resistance $100\, \Omega$ increases from $10$ to $60$ webers. The amount of induced charge that flows in the circuit is (in coulomb)

A coil, a capacitor and an $AC$ source of $rms$ voltage $24 \,V$ are connected in series. By varying the frequency of the source, a maximum $rms$ current of $6\,A$ is observed. If coil is connected to a battery of $emf$ $12 \,volt$ and internal resistance $4\,\Omega$, then current through it in steady state is......$A$

In an ac generator, a rectangular coil of $100$ turns each having area $14 \times 10^{-2}\,m ^2$ is rotated at $360\,rev / min$ about an axis perpendicular to a uniform magnetic field of magnitude $3.0 T$. The maximum value of the emf produced will be $............V$. $\left(\right.$ Take $\left.\pi=\frac{22}{7}\right)$

When a metal surface is illuminated by light of wavelength $\lambda$, the stopping potential is $8 \mathrm{~V}$. When the same surface is illuminated by light of wavelength $3 \lambda$, stopping potential is $2 \mathrm{~V}$. The threshold wavelength for this surface is :

A tangent galvanometer is connected directly to an ideal battery. If the number of turns in the coil is doubled the deflection will:

In a series $L-C-R$ circuit the frequency of a $10\,volt$ $a.c.$ voltage source is adjusted in such a fashion that the reactance of the inductor measures $15\,\Omega $ and that of the capacitor $11\,\Omega $. If $R = 3\,\Omega $, the potential difference across the series combination of $L$ and $C$ will be.....$V$

The capacitance of a capacitor does not depend on:

To get maximum current through a resistance of $2.5\,\Omega $, one can use $m$ rows of cells, each row having $n$ cells. The internal resistance of each cell is $0.5\,\Omega $. What are the values of $n$ and $m$ if the total number of cells is $45$ ?