MCQ
The hottest planet of solar system is
- AMars
- ✓Mercury
- CVenus
- DPluto
✓
Answer
Correct option: B.
Mercury
The hottest planet of solar system is one which is nearest to sun and has no atmosphere.
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
A particular emission line, detected in the light from a galaxy, has a wavelength $\lambda^{\prime}=1.1 \lambda$, where $\lambda$ is the proper wavelength of the line. The galaxy distance from us
→A body of mass $3 kg$ is acted on by a force which varies as shown in the graph below. The momentum acquired is given by
→
A coil of area $100 \mathrm{~cm}^2$ has $500$ turns. Magnetic field of $0.1$ weber / metre ${ }^2$ is perpendicular to the coil. The field is reduced to zero in $0.1$ second. The induced e.m.f. in the coil is
→Orbital velocity of earth's satellite near the surface is $7 \mathrm{~km} / \mathrm{s}$. When the radius of the orbit is 4 times than that of earth's radius, then orbital velocity in that orbit is
→Two galvanometers $A$ and $B$ require $3\,mA$ and $5\,mA$ respectively to produce the same deflection of $10$ divisions. Then
→The armature of dc motor has $20 \Omega$ resistance. It draws current of $1.5$ ampere when run by $220$ volts dc supply. The value of back e.m.f. induced in it will be
→A radio transmitter operates at a frequency of $880 \mathrm{kHz}$ and a power of $10 \mathrm{~kW}$. The number of photons emitted per second are
→Compton effect shows that
Two drops of the same radius are falling through air with a steady velocity of $5\ cm$ per sec. If the two drops coalesce, the terminal velocity would be
→The coil of dynamo is rotating in a magnetic field. The developed induced e.m.f. changes and the number of magnetic lines of force also changes. Which of the following condition is correct