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Monochromatic light means waves of:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
Frequency of red color as compared to that of violet color is:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
Wavelength of red color as compared to that of violet color is:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
Which one of the following can act approximately as a source of monochromatic light:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
Electromagnetic waves transport:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
Wavelength of light, on the average, is given by:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
Light has:
NETNUST Entry TestPhysicsPhysical Optics and Optical Instruments
What is the time period of the wave $\rm{\sin(wt)}$?
NETNUST Entry TestPhysicsOscillations
Transverse waves can transfer on their energy, in
NETNUST Entry TestPhysicsOscillations
What will be impact on the frequency of a simple pendulum if the length of pendulum is halved and value of gravity is doubled?
NETNUST Entry TestPhysicsOscillations
In SHM _________ is conserved
NETNUST Entry TestPhysicsOscillations
Which of the following is true for a wave entering a denser medium?
NETNUST Entry TestPhysicsOscillations
Which of the following changes must when a wave changes its medium?
NETNUST Entry TestPhysicsOscillations
If a spring with spring constant k is halved, the new spring constant of each part will be
NETNUST Entry TestPhysicsOscillations
A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely
NETNUST Entry TestPhysicsOscillations
In Damping
NETNUST Entry TestPhysicsOscillations
According to the Hook's law, strain is directly proportional to stress
NETNUST Entry TestPhysicsOscillations
What is the kinetic energy at the extreme position during SHM?
NETNUST Entry TestPhysicsOscillations
Time period of a pendulum is T. What will be the time period if length becomes 5 times and g becomes 1/5 times at some height from the earth?
NETNUST Entry TestPhysicsOscillations
On increasing the spring constant to 4 times
NETNUST Entry TestPhysicsOscillations
General Equation of SHM is $\rm{x(t)=A\sin(wt)}$. Find approximate value of $\rm{wt}$, if $\rm{x(t) =71\,cm}$ and $\rm{A =100\,cm}$
NETNUST Entry TestPhysicsOscillations
If spring constant is 2 and displacement is also 2 then the sum of kinetic and potential energy will be
NETNUST Entry TestPhysicsOscillations
If length of a pendulum if 4 times g, its time period will be
NETNUST Entry TestPhysicsOscillations
The total energy of a pendulum is $\rm{50 \,\,J}$. What will be its kinetic energy at the mean position·?
NETNUST Entry TestPhysicsOscillations
If the length of simple pendulum is increased to 6 times and g reduces to 3 times, then time period will be?
NETNUST Entry TestPhysicsOscillations