Ah yes the answer to that is
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Followed by
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Your welcome
Answer: black
Explanation: When green light is shone on a red object, it absorbs all of the green light and not reflecting anything. Hence, it appears black.
Answer:
The magnitude of the magnetic field is 0.83 T
Explanation:
Given :
Speed of electron inside television tube (<em>v</em>) = ×
Radius of electron moving path () = ×
According lorentz force in magnetic field is,
∴ ×
Where, = charge of electron, = speed of electron, = magnetic field and
= force on electron.
when electron is moving in circular orbit the force is given by,
∴
so we equate above both equation.
∴ ×
∴
∴ ××××××
∴ 0.83 Tesla
Therefore, the magnitude of the magnetic field is 0.83 T.
Increasing the water temperature by adding hot water is called thermal heating, so the correct answer is d)