The current in the following circuit is
|
(a) |
(b) |
(c) |
(d) 1A |
The current in the following circuit is
|
(a) |
(b) |
(c) |
(d) 1A |
(d) 1A
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$\overrightarrow{\text{F}}.\overrightarrow{\text{a}}$
$\overrightarrow{\text{v}}.\overrightarrow{\text{r}}$
$\overrightarrow{\text{a}}.\overrightarrow{\text{r}}$
$\overrightarrow{\text{F}}.\overrightarrow{\text{r}}$
The focal length of a lens of refractive index $\mu$ is f. If the lens is immersed in a liquid of refractive index $\mu$ then the focal length of lens is:
In charging a battery of motor-car, the following effect of electric current is used
|
(a) Magnetic |
(b) Heating |
(c) Chemical |
(d) Induction |

When forward bias is applied to a P-N junction, then what happens to the potential barrier , and the width of charge depleted region x
|
(a) |
(b) |
|
(c) |
(d) |
By Huygen's wave theory of light, we cannot explain the phenomenon of
|
(a) Interference |
(b) Diffraction |
(c) Photoelectric effect |
(d) Polarisation |
The de-Broglie wavelength of an electron having 80eV of energy is nearly (1eV = 1.6 × 10–19 J, Mass of electron = 9 × 10–31kg Plank’s constant = 6.6 × 10–34 J-sec)
|
(a) 140 Å |
(b) 0.14 Å |
(c) 14 Å |
(d) 1.4 Å |