MCQ
A photon will have less energy, if its:
  • A
    Amplitude is higher
  • B
    Frequency is higher
  • Wavelength is longer
  • D
    Wavelength is shorter

Answer

Correct option: C.
Wavelength is longer

Energy of photon $=\frac{\text{hc}}{\gamma}$
Hence, a photon with longer wavelenght will carry less energy.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

$X-$ray from a Coolidge tube is incident on a thin aluminium foil. The intensity of the $X-$ray transmitted by the foil is found to be $I_0$. The heating current is increased to increase the temperature of the filament. The intensity of the $X-$ray transmitted by the foil will be:
A nucleus of $_{84}^{210}Po$ originally at rest emits $\alpha$ particle with speed $v$. What will be the recoil speed of the daughter nucleus
In the image given below, the total number of reflections of the light ray before it exits the system will be
Power factor of LCR circuit in resonance is:
Figure shows a square loop $ABCD$ with edge length $a$. The resistance of the wire $ABC$ is $r$ and that of $ADC$ is $2r$. The value of magnetic field at the centre of the loop assuming uniform wire is
An electron with an initial speed of $4.0 \times 10^6 \,ms ^{-1}$ is brought to rest by an electric field. The mass and charge of an electron are $9 \times 10^{-31} \,kg$ and $1.6 \times 10^{-19} \,C$, respectively. Identify the correct statement.
A beaker containing liquid is placed on a table, underneath a microscope which can be moved along a vertical scale. The microscope is focussed, through the liquid onto a mark on the table when the reading on the scale is $a$. It is next focussed on the upper surface of the liquid and the reading is $b.$ More liquid is added and the observations are repeated, the corresponding readings are $c$ and $d.$ The refractive index of the liquid is
The energy stored in a 50 mH inductor carrying a current of 4 A will be
In the figure a capacitor is filled with dielectrics. The resultant capacitance is
The length of Milky way is.......... light years