1
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

A toy gun uses a spring of force constant $$k$$. When charged before being triggered in the upward direction, the spring is compressed by a distance $$x$$. If the mass of the shot is $$m$$, on being triggered it will go upto a height of

A
$$\frac{k x^2}{m g}$$
B
$$\frac{x^2}{k m g}$$
C
$$\frac{k x^2}{2 m g}$$
D
$$\frac{k^2 x^2}{m g}$$
2
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

A capacitor is filled with two dielectrics of the same dimensions but of dielectric constants 2 and 3 as shown in Fig.(a) and then in Fig.(b). Then ratio of the capacitor in the two arrangements is

VITEEE 2022 Physics - Capacitor Question 3 English

A
25 : 24
B
24 : 25
C
12 : 13
D
13 : 12
3
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

In which of the following photoelectric effect is not observed?

A
Potassium
B
Rubidium
C
Magnesium
D
Cesium
4
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

An electrically heated coil is immersed in a calorimeter containing $$360 \mathrm{~g}$$ of water at $$10^{\circ} \mathrm{C}$$. The coil consumes energy at the rate of $$90 \mathrm{~W}$$. The water equivalent of calorimeter and coil is $$40 \mathrm{~g}$$. The temperature of water after $$10 \mathrm{~min}$$ is

A
$$4.214^{\circ} \mathrm{C}$$
B
$$42.14^{\circ} \mathrm{C}$$
C
$$30^{\circ} \mathrm{C}$$
D
$$45.18^{\circ} \mathrm{C}$$
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12