MCQ
On increasing the distance between the light source and the photoelectric cell, the value of stopping potential changes :
- AIncreases
- BDecreases
- ✓There is no change
- DNone of these
✓
Answer
Correct option: C.
There is no change
(C) - There is no change
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A bulb of 100 watt is hanging at a height of one meter above the centre of a circular table of diameter 4 m. If the intensity at a point on its rim is 
, then the intensity at the centre of the table will be
|
(a) |
(b) 2 |
(c) 2 |
(d) 5 |
A plane mirror produces a magnification of
| (a) -1 | (b) +1 | (c) Zero | (d) Between 0 and +∞ |
In Bohr’s model of hydrogen atom, which of the following pairs of quantities are quantized
| (a) Energy and linear momentum | (b) Linear and angular momentum |
| (c) Energy and angular momentum | (d) None of the above |
In Bohr’s model of an atom which of the following is an integral multiple of $\frac{\text{h}}{2\pi}$?
→In case of Coulomb’s law, the value of k is given by:
If an electron and a proton have the same de-Broglie wavelength, the K.E of electrons is:
The wavelength of light in two liquids ‘x' and ‘y' is 3500 Å and 7000 Å, then the critical angle of x relative to y will be
|
(a) 60° |
(b) 45° |
(c) 30° |
(d) 15° |
The wave theory of light, in its original form, was first postulated by.
Which logic gate is represented by the following combination of logic gates
|
(a) OR |
(b) NAND |
(c) AND |
(d) NOR |
Thermocouple is a device for the measurement of
|
(a) Absolute temperature of a metal |
|
(b) The temperature difference between two substances |
|
(c) The couple acting on a wire |
|
(d) Thermal conductivity of a substance |