MCQ
The continuous $X-$ rays spectrum produced by an $X-$ ray machine at constant voltage has
- AA maximum wavelength
- ✓A minimum wavelength
- CA single wavelength
- DA minimum frequency
✓
Answer
Correct option: B.
A minimum wavelength
b
(b)Continuous spectrum of $X-$ rays consists of radiations of all possible wavelength range having a definite short wavelength limit.
(b)Continuous spectrum of $X-$ rays consists of radiations of all possible wavelength range having a definite short wavelength limit.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If a unit positive charge is taken from one point to another over an equipotential surface, then
The variation of decay rate of two radioactive samples A and B with time is shown in Fig. Which of the following statements are true?
An achromatic combination of lenses produces
In a double slit experiment, instead of taking slits of equal widths, one slit is made twice as wide as the other. Then in the interference pattern :
Huygen's wave theory allows us to know:
If a radioactive substance reduces to $\frac {1}{16}$ of its original mass in 40 days, what is its half-life
→The magnetic lines of force inside a bar magnet:
A full wave rectifier circuit consists of two $p-n$ junction diodes, a centre-tapped transformer, capacitor and a load resistance. Which of these components remove the ac ripple from the rectified output?
→Positive rays was discovered by
A film projector magnifies a $100 \;cm^2$ film strip on a screen. If the linear magnification is $4,$ the area of magnified film on the screen is.....$cm^2$
→