1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
An iron rod of susceptibility 599 is subjected to a magnetizing field of 1200 A m-1. The permeability of the material of the rod is :
$$\left( {{\mu _0} = 4\pi \times {{10}^{ - 7}}Tm{A^{ - 1}}} \right)$$
A
$$8.0 \times {10^{ - 5}}Tm{A^{ - 1}}$$
B
$$2.4\pi \times {10^{ - 5}}Tm{A^{ - 1}}$$
C
$$2.4\pi \times {10^{ - 7}}Tm{A^{ - 1}}$$
D
$$2.4\pi \times {10^{ - 4}}Tm{A^{ - 1}}$$
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The phase difference between displacement and acceleration of a particle in a simple harmonic motion is :
A
$${{3\pi } \over 2}rad$$
B
$${\pi \over 2}rad$$
C
zero
D
$$\pi $$ rad
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The energy equivalent of 0.5 g of a substance is :
A
$$4.5 \times {10^{13}}J$$
B
$$1.5 \times {10^{13}}J$$
C
$$0.5 \times {10^{13}}J$$
D
$$4.5 \times {10^{16}}J$$
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
A resistance wire connected in the left gap of a metre bridge balances a 10 $$\Omega $$ resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5 m, then the length of 1 $$\Omega $$ of the resistance wire is :
A
$$1.0 \times {10^{ - 1}}m$$
B
$$1.5 \times {10^{ - 1}}m$$
C
$$1.5 \times {10^{ - 2}}m$$
D
$$1.0 \times {10^{ - 2}}m$$
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