1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

A constant torque of $$100 \mathrm{~N} \mathrm{~m}$$ turns a wheel of moment of inertia $$300 \mathrm{~kg} \mathrm{~m}^2$$ about an axis passing through its centre. Starting from rest, its angular velocity after $$3 \mathrm{~s}$$ is :-

A
1 rad/s
B
5 rad/s
C
10 rad/s
D
15 rad/s
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The emf of a cell having internal resistance $$1 \Omega$$ is balanced against a length of $$330 \mathrm{~cm}$$ on a potentiometer wire. When an external resistance of $$2 \Omega$$ is connected across the cell, the balancing length will be :

A
220 cm
B
330 cm
C
115 cm
D
332 cm
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

A $$1 \mathrm{~kg}$$ object strikes a wall with velocity $$1 \mathrm{~m} \mathrm{~s}^{-1}$$ at an angle of $$60^{\circ}$$ with the wall and reflects at the same angle. If it remains in contact with wall for $$0.1 \mathrm{~s}$$, then the force exerted on the wall is :

A
$$30 \sqrt{3} \mathrm{~N}$$
B
Zero
C
$$10 \sqrt{3} \mathrm{~N}$$
D
$$20 \sqrt{3} \mathrm{~N}$$
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The angular momentum of an electron moving in an orbit of hydrogen atom is $$\mathrm{1.5\left(\frac{h}{\pi}\right)}$$. The energy in the same orbit is nearly.

A
$$-1.5$$ eV
B
$$-1.6$$ eV
C
$$-1.3$$ eV
D
$$-1.4$$ eV
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12