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

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
Change Language

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
Change Language

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
Change Language

Given below are two statements:

Statement I : Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element (Idl) of a current carrying conductor only.

Statement II : Biot-Savart's law is analogous to Coulomb's inverse square law of charge q, with the former being related to the field produced by a scalar source, Idl while the latter being produced by a vector source, q.

In light of above statements choose the most appropriate answer from the options given below.

A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct and Statement II is incorrect
D
Statement I is incorrect and Statement II is correct
EXAM MAP