The image which can not be taken on the screen is called:
- AA real image
- BA virtual image
- CEither a real or a virtual image
- DNeither a real nor a virtual image
The image which can not be taken on the screen is called:
Explanation:
The image which can not be taken on the screen is called a virtual image.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The kinetic energy of electron and proton is
. Then the relation between their de-Broglie wavelengths is
|
(a) |
(b) |
(c) |
(d) |
If you are provided three resistances 2 W, 3 W and 6 W. How will you connect them so as to obtain the equivalent resistance of 4 W
|
(a)
|
(b)
|
(c)
|
(d) None of these |
$8\ \pi\text{r}^2\text{S}$
$12\ \pi\text{r}^2\text{S}$
$16\ \pi\text{r}^2\text{S}$
$24\ \pi\text{r}^2\text{S}\cdot$
The current in the arm CD of the circuit will be

|
(a) |
(b) |
(c) |
(d) |
The current flowing in a copper voltameter is 3.2 A. The number of copper ions ( deposited at the cathode per minute is
|
(a) 0.5 |
(b) 1.5 |
(c) 3 |
(d) 6 |
The majority charge carriers in P-type semiconductor are
|
(a) Electrons |
(b) Protons |
(c) Holes |
(d) Neutrons |

A part of a long wire carrying a current i is bent into a circle of radius r as shown in figure. The net magnetic field at the centre O of the circular loop is
|
(a) |
(b) |
(c) |
(d) |