MCQ
For harder $X-$ rays
- AThe wavelength is higher
- BThe intensity is higher
- ✓The frequency is higher
- DThe photon energy is lower
✓
Answer
Correct option: C.
The frequency is higher
c
Hard $x$-rays are the highest energy $x$-rays, while the lower energy $x$-rays are referred to as soft $X$-rays. The distinction between hard and soft $x$-rays is not well defined. Hard x-rays are typically those with energies greater than around $10\,keV$. More relevant to the distinction are the instruments required to observe them and the physical conditions under which the $x$-rays are produced.
Hard $x$-rays are the highest energy $x$-rays, while the lower energy $x$-rays are referred to as soft $X$-rays. The distinction between hard and soft $x$-rays is not well defined. Hard x-rays are typically those with energies greater than around $10\,keV$. More relevant to the distinction are the instruments required to observe them and the physical conditions under which the $x$-rays are produced.
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
The minimum wavelength of $X$-rays produced by an electron accelerated through a potential difference of $V_{\text {volts }}$ is proportional to :
→The mass defect in a particular nuclear reaction is 0.3 grams. The amount of energy liberated in kilowatt hours is (Velocity of light = $3 \times 10^8 \mathrm{~m} / \mathrm{s}$)
→A charged capacitor is allowed to discharge through a resistance $2\,\Omega $ by closing the switch $S $ at the instant $t = 0$. At time $t = ln$ $2$ $\mu s$, the reading of the ammeter falls half of its initial value. The resistance of the ammeter equal to
→For the study of the helical structure of nucleic acids, the property of electromagnetic radiation generally used is
Assertion : In a cavity within a conductor, the electric field is zero.
Reason : Charges in a conductor reside only at its surface
When a plane mirror is placed horizontally on a level ground at a distance of $60m$ from the foot of a tower, the top of the tower and its image in the mirror subtend an angle of $90^\circ $ at the eye. The height of the tower will be.....$m$
→The figure represents variation of triode parameter ($\pi$ or $r_p$ or gm) with the plate current. The correct variation of $\mu$and rp are given, respectively by the curves
→Which of the following phenomena suggests the presence of electron energy levels in atoms
The resistance of the filament of an electric bulb changes with temperature. If an electric bulb rated $220\, volt$ and $100\, watt$ is connected $(220 \times 0.8)$ $volt$ sources, then the actual power would be
→The first diffraction minimum due to the single slit diffraction is seen at $\theta = {30^o}$ for a light of wavelength $5000\,\mathop A\limits^o $ falling perpendicularly on the slit. The width of the slit is
→