WorksheetsScreening
Total questions: 15
Worksheet time: 8mins
The time period of a simple pendulum is T remaining at rest inside a lift. Find the time period of the pendulum when the lift starts to move up with an acceleration of g/3
T
T/2
2T/5
T√3/2
The length of the second’s pendulum on the surface of the earth is 1m. The length of the same pendulum on the surface of the moon, where the acceleration due to gravity is (⅙)th of the g on the surface of the earth is
36
m
1m
1/36
m
⅙ m
For which of the following is magnetic susceptibility negative?
Paramagnetic
and Ferromagnetic materials
Paramagnetic
Materials only
Ferromagnetic
Materials only
Diamagnetic
Materials
The Hysteresis loops for two magnetic materials A and B are given below:
These materials are used to make magnets for transformer core, electric generators and electromagnet core. Which of the following is true about the given magnets?
A
for transformers and B for electric generators
A
for electric generators and transformers
B
for electromagnets and generators
A
for electromagnets and B for electric generators
Thermodynamics is a branch of Physics that helps in understanding heat and temperature and their relation with work, energy, radiation, and other properties of matter.
There are four laws of thermodynamics and they are:
Zeroth
law of thermodynamics: The laws state that when two systems are in
thermal equilibrium with a third system, then the first two systems
are in thermal equilibrium with each other.
The
first law of thermodynamics: Energy can neither be created nor
destroyed. It can only be transformed from one form to another.
The
second law of thermodynamics: The entropy of an isolated system that
is not in equilibrium will increase over time and reaches the
maximum value at equilibrium.
Third
law of thermodynamics: For entropy to approach the constant, the
temperature must approach absolute zero.
Following
is the diagram of the thermodynamic process. Refer the diagram and
match the following
P Process – I (a) Adiabatic
Q Process – II (b) Isobaric
R Process – III (c) Isochoric
S Process – IV (d) Isothermal
(P,c), (Q,d), (R,b), (S,a)
(P,c), (Q,d), (R,b), (S,a)
(P,a), (Q,c), (R,d), (S,b)
(P,c), (Q,a), (R,d), (S,b)
The average of first 50 natural numbers is …………. .
25.30
25.5
25.00
12.25
A clock strikes once at 1 o’clock, twice at 2 o’clock, thrice at 3 o’clock and so on. How many times will it strike in 24 hours?
78
136
156
196
Which of the following numbers gives 240 when added to its own square?
15
16
18
20
Calamine is an ore of which among the following?
Zinc
Copper
Mercury
Iron
Which among the following minerals is also known as Horn Silver?
Silver Iodide
Silver Chroride
Zinc Phosphate
Silver Sulphide
Which among the following provides potential energy to an object?
Its momentum
It’s position
It’s acceleration
It’s shape
Which of the following units is NOT used for measuring length?
Astronomical Unit
Light year
Par sec
Slug
Identify the device through which data and instructions are entered into a computer
Software
Output device
Input device
Memory
Which one of these stores more data than a DVD ?
CD Rom
Floppy
Blue Ray Disk
Red Ray Disk
Arrange in ascending order the units of memory TB, KB, GB, MB
TB>MB>GB>KB
MB>GB>TB>KB
TB>GB>MB>KB
GB>MB>KB>TB
