Question

(1) All questions are compulsory.
(ii) Question Numbers 1 to 35 are objective npe questions of 1 mark each.
(iii) Question Numbers 36 10 40 are very short answer questions of 2 marks each. Ans
30 words each
(iv) Question Numbers 41 10 45 are short answer questions of 3 marks each. Answer
words each
(v) Question Numbers 46 to 47 are long answer questions of 5 marks each. Ans
70 words each
(vi) There is no overall choice. However, internal choices is given in two long ans
carrying 5 marks each. You have to attempt only one of the given choice in such
SECTION - A
1. The least distance of distinct vision for a normal human eye is :
(A) 1 m
(B) 0.5 m
(C) 1.25 m
(D) 0.25 m
2. Phenomenon of splitting of light into its constituent colours is known as:
(A) Scattering
(B) Diffraction
(C) Refraction
(D) Dispersion
3. The Poynting vector is defined as:
(A) E XB
)
(B) EB
B
(C) EH
(D) EXH.
4. Siemens is a unit of:
(A) conductance
(B) sell inductance
(C) resistivity
(D) internal resistance.
5. The torque acting on an electric dipole of dipole moment P placed parallel to el
(A) PE
(B) PE
(C) Zero
(D) EIP
6. The magnetic moment and magnetic permeability has dimensions of:
(A) [LA] and [M'L'T-1A-21
(B) [LPA] and [M'L'T-2A-2
(C) |LT-!A] and [MⓇL?T-'Aºj
(D) [L-T-!A] and [M'L2T24
60​

Answer 1

Answer:

1 d 0.25m

2 d dispersion

Answer 2

Answer:

The Bohr magneton μB is a physical constant and the natural unit for expressing the magnetic moment of an electron caused by either its orbital or spin angular momentum.