1
MHT CET 2023 11th May Morning Shift
+1
-0

A bullet is fired on a target with velocity '$$\mathrm{V}$$'. Its velocity decreases from '$$\mathrm{V}$$' to '$$\mathrm{V} / 2$$' when it penetrates $$30 \mathrm{~cm}$$ in a target. Through what thickness it will penetrate further in the target before coming to rest?

A
5 cm
B
8 cm
C
10 cm
D
20 cm
2
MHT CET 2023 10th May Evening Shift
+1
-0

Two trains, each $$30 \mathrm{~m}$$ long are travelling in opposite directions with velocities $$5 \mathrm{~m} / \mathrm{s}$$ and $$10 \mathrm{~m} / \mathrm{s}$$. They will cross after

A
4 s
B
3 s
C
2 s
D
1 s
3
MHT CET 2023 10th May Morning Shift
+1
-0

A body is released from the top of a tower '$$\mathrm{H}$$' metre high. It takes $$t$$ second to reach the ground. The height of the body $$\frac{t}{2}$$ second after release is

A
$$\frac{\mathrm{H}}{2}$$ metre from ground
B
$$\frac{\mathrm{H}}{4}$$ metre from ground
C
$$3 \frac{\mathrm{H}}{4}$$ metre from ground
D
$$\frac{\mathrm{H}}{6}$$ metre from ground
4
MHT CET 2023 9th May Morning Shift
+1
-0

The ratio of wavelengths for transition of electrons from $$2^{\text {nd }}$$ orbit to $$1^{\text {st }}$$ orbit of Helium $$\left(\mathrm{He}^{++}\right)$$ and Lithium $$\left(\mathrm{Li}^{++1}\right)$$ is (Atomic number of Helium $$=2$$, Atomic number of Lithium $$=3$$ )

A
$$9: 4$$
B
$$9: 36$$
C
$$4: 9$$
D
$$2: 3$$
EXAM MAP
Medical
NEET