1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Plane angle and solid angle have

A
Units but no dimensions
B
Dimensions but no units
C
No units and no dimensions
D
Both units and dimensions
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Let T1 and T2 be the energy of an electron in the first and second excited states of hydrogen atoms, respectively. According to the Bohr's model of an atom, the ratio T1 : T2 is

A
1 : 4
B
4 : 1
C
4 : 9
D
9 : 4
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II

List - I List - II
(a) Gravitational constant (G) (i) $$[{L^2}{T^{ - 2}}]$$
(b) Gravitational potential energy (ii) $$[{M^{ - 1}}{L^3}{T^{ - 2}}]$$
(c) Gravitational potential (iii) $$[L{T^{ - 2}}]$$
(d) Gravitational intensity (iv) $$[M{L^2}{T^{ - 2}}]$$

Choose the correct answer from the options given below

A
(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
B
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
C
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
D
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Two pendulums of length 121 cm and 100 cm start vibrating in phase. At some instant, the two are at their mean position in the same phase. The minimum number of vibrations of the shorter pendulum after which the two are again in phase at the mean position is :

A
11
B
9
C
10
D
8
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