Download App

Ray Optics and Optical Instruments — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsRay Optics and Optical Instruments1 Mark
MCQ
How can we explain the reddish appearance of sun at sunrise or sunset?
  • ✓
    Scattering of blue light is more than the scattering of red light.
  • B
    Scattering of red light is more than the scattering of blue light.
  • C
    Intensity of sun reduces during sunrise and sunset.
  • D
    Due to the view angle, it appears blue.
✓

Answer

Correct option: A.
Scattering of blue light is more than the scattering of red light.

During sunrise or sunset, the light has to pass through greater distance in the atmosphere. The blue light is removed as it gets scattered the most while the red colour is less scattered and reaches the observer. Thus, we find reddish colour of the sun during sunrise or sunset.

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

Explore more

More "M.C.Q (1 Marks)" from Ray Optics and Optical Instruments→Ray Optics and Optical Instruments — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

According to Mosley's law, the frequency of a spectral line in $X-$ ray spectrum varies as
→
A wire carrying a current i is placed in a uniform magnetic field in the form of the curve y = asin$\left(\frac{\pi x}{L}\right)$ 0 ≤ x ≤ 2L. The force acting on the wire is
→
For the circuit shown in the figure, the current $I$ will be .......$A$
→
The mass of a neutral carbon atom in ground state is:
→
In a $PNP$ transistor working as a common-base amplifier, current gain is $0.96$ and emitter current is $7.2\, mA$. The base current is.....$mA$
→
Radio waves coming at $\angle \, \alpha$ to vertical are recieved by a radar after reflection from a nearby water surface & directly. What should be height of antenna from water surface so that it records a maximum intensity. (wavelength $= \lambda$ ).
→
A charged particle enters into a uniform magnetic field the parameter that remains constant is:
→
An electron having charge ‘e’ and mass ‘m’ is moving in a uniform electric field E. Its acceleration will be
→
A radioactive sample is $a-$emitter with half life $138.6$ days is observed by a student to have $2000$ disintegration$/\sec.$ The number of radioactive nuclei for given activity are
→
A radioactive sample decays $\frac{7}{4}$ times its original quantity in $15$ minutes. The half-life of the sample is $......min$
→