Physics - Online Test
Q1. Choose the correct statement from the following
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. A particle is placed at the origin and a force F=kx
is acting on it (where k is a positive
constant). If U(0)=0, the graph of U(x) versus x will be (where U is the
potential energy function)
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. If the acceleration due to gravity becomes 4 times its original value, then escape speed
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. The wettability of a surface by a liquid depends primarily on
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. The efficiency of a heat engine working between the freezing point and boiling point of water is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. For a given gas molecule at a fixed temperature, the area under the Maxwell-Boltzmann distribution curve is equal to
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. Which of the following differential equations represents a damped harmonic oscillator ?
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. A
uniform rope having mass m hangs vertically from a rigid support. A transverse
wave pulse is produced at the lower end. Which of the following plots shows the
correct variation of speed v with height
h from the lower end?
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Planck’s constant (h), speed of light in vacuum (c) and Newton’s gravitational constant (G) are taken as three fundamental constants. Which of the following combinations of these has the dimension of length?.
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. Two objects are projected at angles 30° and 60°
respectively with respect to the horizontal direction. The range of two objects
are denoted as R30̊ and R60̊. Choose the correct relation
from the following
Answer : Option A
Explaination / Solution:
No Explaination.
