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

The angle between the electric lines of force and the equipotential surface is

A
0$$^\circ$$
B
45$$^\circ$$
C
90$$^\circ$$
D
180$$^\circ$$
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

When two monochromatic lights of frequency, v and $${v \over 2}$$ are incident on a photoelectric metal, their stopping potential becomes $${{{V_s}} \over 2}$$ and Vs respectively. The threshold frequency for this metal is

A
2v
B
3v
C
$${2 \over 3}$$v
D
$${3 \over 2}$$v
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

A long solenoid of radius 1 mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is

A
6.28 $$\times$$ 10$$-$$2 T
B
12.56 $$\times$$ 10$$-$$2 T
C
12.56 $$\times$$ 10$$-$$4 T
D
6.28 $$\times$$ 10$$-$$4 T
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

In the given nuclear reaction, the element X is

$${}_{11}^{22}Na \to X + {e^ + } + v$$

A
$${}_{11}^{23}Na$$
B
$${}_{10}^{23}Ne$$
C
$${}_{10}^{22}Ne$$
D
$${}_{12}^{22}Mg$$
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