The carburettor of a car is an application of Venturi meter and Bernoulli equation.
Blood flow is laminar at systolic pressure.
The profile of an airplane wing that lifts it up is called an aerofoil profile.
Bernoulli’s equation is applicable for both laminar and turbulent flow.
The density of human blood is nearly equal to water.
The speed of the fluid is maximum in the venturi meter at the throat.
The normal blood pressure range for a human body is 120 to 80 torr.
For turbulent flow, the path of the fluid particles cannot be tracked.
In vibratory motion, total energy remains constant.
The waveform of simple harmonic motion is a sine wave.
The SI unit of frequency is Hertz.
In S.H.M., the velocity of a particle is maximum at the mean position.
The acceleration of a projection on the diameter for a particle moving along a circle is w^2x.
The total energy of a body executing S.H.M is directly proportional to the square of an amplitude.
The time period of a second pendulum is 2 seconds.
The length of the second pendulum is 99.2 cm.
If the length of the second pendulum becomes four times, then its time period will become 2 times.
The force responsible for the vibratory motion of the simple pendulum is mg sinθ.
The frequency of the second pendulum is 0.5 hertz.
Simple harmonic motion is a type of vibratory motion.
The SI unit of force constant is identical with that of surface tension.
When the amplitude of a wave becomes double, its energy becomes four times.
A simple pendulum suspended from the ceiling of a lift has an infinite time period when the lift falls freely.
The energy of SHM is maximum at all positions during SHM.
The product of the frequency and time period is equal to 1.
The length of the second pendulum is 99.2 cm.
If the displacement of SHM is written as X = X’sinθt, then the phase constant will be 90°.
For what displacement does the P.E become 1/4 of its maximum value? x = x’/2.
The bulb does not work according to resonance.
The restoring force acting on the simple pendulum is caused by gravity.
The phase of SHM describes both displacement and direction of motion.
The sharpness of resonance is inversely proportional to the damping force.
The natural frequency of a simple pendulum depends on the square root of its length.
Electrical resonance is observed in radios.
The total distance traveled by a bob of the simple pendulum in one vibration is 4 times the amplitude.
When K.E energy of SHM is maximum, all P.E, acceleration, and restoring force are zero.
In damped harmonic oscillation, both amplitude and energy decrease.
Forced vibration is known as driven harmonic vibration.
The mass attached to a spring executes both vibratory and circular motion.
At Murree Hills, if we use a simple pendulum as a time standard, one-second duration will increase.
The velocity of the mass attached to a spring is maximum at the mean position.
The projection of the particle moving in a circle with non-uniform speed executes both vibratory motion and none SHM.
The displacement of the body in S.H.M is equal to the amplitude when the body is at the extreme position.
For a simple pendulum, the restoring force is caused by gravity.
The distance covered by a body in one complete vibration is 5 cm, so the amplitude is 5 cm.
In a microwave oven, milk will be heated up only, and the cup will remain cool.
In case of a simple pendulum, the cause of damping is the drag force of air.
The energy absorbed by a body is maximum at resonance.
The relativistic energy E is equivalent to relativistic mass given by E/c^2.
γ-rays have the strongest photons among the provided radiations.
The mass of 0.001 kg is equivalent to 25.00 GWh.
Newton’s laws of motion are not valid in an accelerated (non-inertial) frame of reference.
The wavelength of a photon entering a transparent denser medium is shorter, so its energy remains the same.
The linear momentum of a photon is zero.
Stopping potential for a metal surface in case of photoelectric emission depends on the frequency of incident light and work function of the metal surface.
The change in wavelength is maximum in Compton scattering if the angle of scattering is 180°.
The existence of Ether wind was experimentally rejected by the Michelson-Morley experiment.
The rest mass of a photon is zero.
Einstein’s photoelectric equation is given by 1/2 mvmax^2 = hf – Φ.
The velocity of light entering into a denser medium decreases, and thus the energy of light remains the same.
Rest mass of a photon is zero.
Relativistic energy E is equivalent to relativistic mass given by E/c^2.
The relativistic energy E is equivalent to relativistic mass given by E/c^2.
A photon is a quantum of electromagnetic radiation.
Davison Germer experiment indicates electron diffraction.
A photon is a quantum of electromagnetic radiation.
103 photons of wavelength 2 pm (γ-rays) have the largest energy content.
The rate of emission of photons is speed of light.
The energy of light remains the same after traveling through a vacuum and entering a transparent denser medium.
