MCQ
The ozone layer in the atmosphere absorbs:
- AOnly the radiowaves
- BOnly the visible light
- COnly the $γ-$rays
- ✓$X-$rays and ultraviolet rays
✓
Answer
Correct option: D.
$X-$rays and ultraviolet rays
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 the ratio of amplitude of two waves is $4 : 3$, then the ratio of maximum and minimum intensity is
→A conducting bar $PQ$ of length $l$ carrying current $I$ is suspended from a rigid support as shown in figure. A uniform magnetic field $B$ perpendicular to $PQ$ and directed away from the reader (inside the plane) is applied. If the mass of the bar is $M$ the tension in each string is
→The mass of ions deposited during a given interval of time in the process of electrolysis depends on
A point source of $100\,W$ emits light with $5 \%$ efficiency. At a distance of $5\,m$ from the source, the intensity produced by the electric field component is :
→Which of the following are correct for insulators?
In a $LCR$ circuit having $ L = 8.0 \,henry,\,C = 0.5 \mu F $ and $R = 100\, \Omega$ in series. The resonance frequency in per second is
→In a discharge tube at 0.02 mm, there is a formation of
According to Bohr's theory, the expressions for the kinetic and potential energy of an electron revolving in an orbit is given respectively by
When a compact disc is illuminated by a source of white light. Coloured 'lanes' are observed. This is due to
Two bulbs of $(40 \;W, 200\; V)$ and $(100\; W, 200 \;V)$. Then correct relation for their resistance
→