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2 years ago

5

Which of the following is true regarding the properties of light?

2 answers:

jolli1 [7]2 years ago

5 0

Option (d) is correct.

Light has a dual nature and acts like both a wave and a particle. This theory was given by Einstein. There are some properties which can be explained only if we consider light as a wave like interference, diffraction , polarization etc . Some other properties like black body radiation, photoelectric effect can be only explained if we consider light as a particle. So, we say that light has dual nature. Light is made of packets of energy called as photons.

jeka57 [31]2 years ago

5 0

Answer: D. Light has a dual nature and acts like both a wave and a particle

Explanation:

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Answer:

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Explanation:

We have given mass of the disk m = 5 kg

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Moment of inertia of disk is given by $I=\frac{1}{2}mr^2=\frac{1}{2}\times 5\times 0.15^2=0.056kgm^2$

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3 years ago

During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive

Alex

Answer:

616.223684211 N

Explanation:

$F_r$ = Resistive force on the wheel = 115 N

F = Force acting on sprocket

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$r_1$ = Radius of wheel = 25 cm

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$I=mr_1^2\\\Rightarrow I=1.7\times 0.25^2\\\Rightarrow I=0.10625\ kgm^2$

Torque

$\tau=I\alpha\\\Rightarrow \tau=0.10625\times 4.9\\\Rightarrow \tau=0.520625\ Nm$

Torque is given by

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2 years ago

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Answer:

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Explanation:

Given that

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a=ω² r

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r=Radius

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a=ω² r

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$a=15.5^2\times 0.1\ m/s^2$

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