(D) The power or rate of heat production is given by $P = VI$.Given $V = 60 \ kV = 60 \times 10^3 \ V$ and $I = 50 \ mA = 50 \times 10^{-3} \ A$.$P =

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(D) The power or rate of heat production is given by $P = VI$.Given $V = 60 \ kV = 60 \times 10^3 \ V$ and $I = 50 \ mA = 50 \times 10^{-3} \ A$.$P = (60 \times 10^3) \times (50 \times 10^{-3}) = 3000 \ J/s$.Since $1 \ calorie = 4.2 \ J$,the rate of heat production in $cal/s$ is $\frac{3000}{4.2} \ cal/s$.$P \approx 714.3 \ cal/s$.Thus,the correct option is $D$.

Class 12 Physics Atoms X-Rays

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When an $X$-ray tube operates at $60 \ kV$,the observed tube current is $50 \ mA$. Assuming that the total energy of the electrons is converted into heat,the rate of heat production at the anode in $cal/s$ is:

A
$100$
B
$300$
C
$500$
D
$714$

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X-Rays

An $X$-ray beam of wavelength $1 \ \mathring A$ is incident on a crystal with a lattice spacing of $2.8 \ \mathring A$. Find the value of the Bragg angle in degrees for the first-order diffraction.

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Which of the following is related to the characteristic emission of $X$-rays?

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$X-$rays are produced due to

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$X$-rays are produced in an $X$-ray tube at a given accelerating voltage. The wavelength of the continuous $X$-rays will be in the range of .......

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When an $X$-ray tube operates at $60 \ kV$,the observed tube current is $50 \ mA$. Assuming that the total energy of the electrons is converted into heat,the rate of heat production at the anode in $cal/s$ is:

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An $X$-ray beam of wavelength $1 \ \mathring A$ is incident on a crystal with a lattice spacing of $2.8 \ \mathring A$. Find the value of the Bragg angle in degrees for the first-order diffraction.

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