Physics - Online Test
Q1. The magnitude of the Sun’s gravitational field as experienced by Earth is
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. Copper of fixed volume V is drawn into a wire of length l. When this wire is subjected to a constant force F, the extension produced in the wire is ∆l. If Y represents the Young’s modulus, then which of the following graphs is a straight line?
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. A distant star emits radiation with maximum intensity at 350 nm. The temperature of the star is
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. A
sample of gas consists of μ1
moles of monoatomic molecules, μ2
moles of diatomic molecules and μ3
moles of linear triatomic molecules. The gas is kept at high temperature. What
is the total number of degrees of freedom?
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. A hollow sphere is filled with water. It is hung by a long thread. As the water flows out of a hole at the bottom, the period of oscillation will
Answer : Option A
Explaination / Solution:
No Explaination.
Q6. Which of the following represents a wave
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. The density of a material in CGS system of units
is 4 g cm-3 . In a system of units in which unit of length is 10 cm
and unit of mass is 100 g, then the value of density of material will be
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. If a particle executes uniform circular motion in the xy plane in clock wise direction, then the angular velocity is in
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. When an object is at rest on the inclined rough surface,
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. A wind-powered generator converts wind energy into electric energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed v, the electrical power output will be proportional to
Answer : Option C
Explaination / Solution:
No Explaination.
