1
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

A ball is allowed to fall from a height of $$10 \mathrm{~m}$$. If there is $$30 \%$$ loss of energy due to impact, then after one impact ball will go up to.

A
10 m
B
8 m
C
4 m
D
7 m
2
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The elastic limit of $$1 \mathrm{~kg}$$ mass is $$3.5 \times 10^{10} \mathrm{~N} / \mathrm{m}^2$$. Find the maximum load that can be applied to a brass wire of a $$1 \mathrm{~mm}$$ diameter without exceeding the elastic unit.

A
$$4.12 \times 10^4 \mathrm{~N}$$
B
$$5.15 \times 10^4 \mathrm{~N}$$
C
$$0.55 \times 10^4 \mathrm{~N}$$
D
$$2.75 \times 10^4 \mathrm{~N}$$
3
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The focal length of thin convex lens for red and blue rays are $$100 \mathrm{~cm}$$ and $$98.01 \mathrm{~cm}$$, respectively. There, the dispersive power of the material of the lens is

A
0.968
B
0.98
C
0.020
D
0.325
4
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The ratio of the acceleration for a solid sphere (mass $$m$$ and radius $$R$$) rolling down an incline of angle '$$\theta$$' without slipping down the incline without rolling is.

A
5 : 7
B
2 : 3
C
2 : 5
D
7 : 5
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