- APositively charged.
- BNegatively charged.
- CUncharged.
- DUncharged at 0K but charged at higher temperatures.
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prism can produce a minimum deviation $\delta$ in a light beam. If three such prisms are combined, the minimum deviation that can be produced in this beam is:
In a transformer, the coefficient of mutual inductance between the primary and the secondary coil is 0.2 henry. When the current changes by 5 ampere/second in the primary, the induced e.m.f. in the secondary will be
|
(a) 5 V |
(b) 1 V |
(c) 25 V |
(d) 10 V |
The stopping potential (
versus frequency (n) plot of a substance is shown in figure the threshold wave length is

|
(a) 5 |
(b) 6000Å |
|
(c) 5000 Å |
(d) Can not be estimated from given data |
A hydrogen atom in its ground state absorbs 10.2 eV of energy. The orbital angular momentum is increased by (Given Planck constant h = 6.6
J - sec)
|
(a) 1.05 |
(b) 3.16 |
(c) 2.11 |
(d) 4.22 |