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Work and Energy
100
Dynamics
87
Kinematics
98
Transfer of Heat
51
Turning Effect of Forces
62
Gravitation
46
Matter Properties
94
Thermal Properties of Matter
103
Atomic and Nuclear Physics
101
Basic Electronics
101
Current Electricity
187
Electromagnetism
101
Electrostatics
123
Geometrical Optics
204
Information and Communication Technology
100
Simple Harmonic Motion and Waves
96
Sound
108
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Physics
Sending a frame to a group of stations is known as
Single casting
Spreading
Multicasting
Casting
In addition to transmitting frames directed to a single address, local area networks are capable of sending frames directed to a group of address, called a multicast address, which can be received by a group of stations.They can also send frames directed to all stations using the broadcast address. A frame sent to multicast destination address can be received by all stations configured to listen for that multicast address.
Author:
rikazzz
Comment
Physics
What is the range of Strong Nuclear force?
Infinite
Very short Subnuclear size
Very short Nuclear size
None
Very short nuclear size is the range of strong nuclear force.
Author:
rikazzz
Comment
Physics
The sparkling of a diamond is due to
Total internal reflection of light
Interference of light
Polarisation of light
Refraction of light
Diamond sparkles because of the total internal reflection that takes place in it, followed by the trapping of the light rays in it. Total internal reflection only takes place when light travels from a denser to a rarer medium.
Author:
rikazzz
Comment
Physics
Planets do not twinkle because
They emit light of a constant intensity
Their distance from the earth does not change with time
They are very far away from the earth resulting in decrease in intensity of light
They are nearer to earth and hence we receive a greater amount of light.
They are nearer to earth and hence we receive a greater amount of light.
Author:
rikazzz
Comment
Physics
Air is said to be saturated when
Its pressure is minimum
It contains the maximum content of water vapour
Its thickness is maximum
It blows over the barren land
Air is said to be saturated when the amount of water vapour in the air is the maximum possible at an existing temperature and pressure. Air is said to be saturated at 100 percent relative humidity when it contains the maximum amount of moisture possible at that specific temperature.
Author:
rikazzz
Comment
Everyday Science
The branch of Physics concerned with the properties of sound is:
Rhythm
Resonance
Acoustics
Announce
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Author:
rikazzz
Comment
Physics
If electric resistance is to be decreased, then the number of resistances should be connected in ________
Series
Parallel
Mixed arrangement
None of these
Resistors are in parallel when each resistor is connected directly to the voltage source by connecting wires having negligible resistance. Each resistor thus has the full voltage of the source applied to it.When resistors are connected in parallel, more current flows from the source than would flow for any of them individually, so the total resistance is lower. Each resistor in parallel has the same full voltage of the source applied to it, but divide the total current among them.
Author:
rikazzz
Comment
Physics
During washing of clothes, we use indigo due to its
Better cleaning action
Proper pigmental composition
High glorious nature
Very low cost
Indigo is a dye different than any other. It does not require any mordant. Rather it is dyed through a living fermentation process. The process “reduces” the Indigo, changing it from blue to yellow. In this state, it dissolves in an alkaline solution. The fibre is worked in the solution, or “vat”. When brought out to the air, it is a bright green. Slowly the air changes it to the beautiful deep and rich blue of Indigo.
Author:
rikazzz
Comment
Everyday Science
Which of the following particles has no electrical charge?
Positron
Electron
Neutron
Proton
Author:
rikazzz
Comment
Everyday Science
Which of the following devices converts electrical energy to sound?
Loudspeaker
Solar Cell
Wind Turbine
Microphone
Electromechanical transducer, any type of device that either converts an electrical signal into sound waves (as in a loudspeaker) or converts a sound wave into an electrical signal (as in the microphone)
Author:
rikazzz
Comment
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