1 Curie is equal to
|
(a) 3 |
(b) 3.7 |
|
(c) 5 |
(d) 3.7 |
1 Curie is equal to
|
(a) 3 |
(b) 3.7 |
|
(c) 5 |
(d) 3.7 |
(d) 3.7
disintegrations/sec
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Which one of the following phenomena is not explained by Huygen's construction of wavefront
|
(a) Refraction |
(b) Reflection |
(c) Diffraction |
(d) Origin of spectra |

Three light bulbs of 40 W, 60 W and 100 W are connected in series with 220 V source. Which one of the bulbs will glow brightest
|
(a) 40 W |
(b) 60 W |
|
(c) 100 W |
(d) All with the same brightness |
The band spectra (characteristic of molecular species) is due to emission of radiation
|
(a) Gaseous state |
(b) Liquid state |
(c) Solid state |
(d) All of three states |
