1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
For which one of the following, Bohr model is not valid?
A
Singly ionised helium atom (He+)
B
Deuteron atom
C
Singly ionised neon atom (Ne+)
D
Hydrogen atom
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of the water in the capillary is 5 g. Another capillary tube of radius 2r is immersed in Water. The mass of water that will rise in this tube is :
A
5.0 g
B
10.0 g
C
20.0 g
D
2.5 g
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale.
The pitch of the screw gauge is :
A
0.25 mm
B
0.5 mm
C
1.0 mm
D
0.01 mm
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
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
$$2.4\pi \times {10^{ - 4}}Tm{A^{ - 1}}$$
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