MCQ
The spectrum of light emitted by a glowing solid is
- ✓Continuous spectrum
- BLine spectrum
- CBand spectrum
- DAbsorption spectrum
✓
Answer
Correct option: A.
Continuous spectrum
a
Continuous spectrum arise from dense gases or solid objects which radiate heat. They emit radiation over a broad range of wavelengths, so the spectrum appear as smooth and continuous. Blackbody is a perfect example for emitting Continuous Spectrum. Any body which glows by radiating heat like incandescent light bulbs, electric cooking stove burners, flames etc emit radiation in Continuous Spectrum.
Continuous spectrum arise from dense gases or solid objects which radiate heat. They emit radiation over a broad range of wavelengths, so the spectrum appear as smooth and continuous. Blackbody is a perfect example for emitting Continuous Spectrum. Any body which glows by radiating heat like incandescent light bulbs, electric cooking stove burners, flames etc emit radiation in Continuous Spectrum.
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 distance between the poles of a horse shoe magnet is $0.1\, m$ and its pole strength is $0.01\, amp-m$. The induction of magnetic field at a point midway between the poles will be
→In an insulator, the forbidden energy gap between the valence band and conduction band is of the order of :
Mass energy equation was propounded by:
$A$ wire of length $L$ and $3$ identical cells of negligible internal resistances are connected in series. Due to the current, the temperature of the wire is raised by $\Delta T$ in time $t. N$ number of similar cells is now connected in series with a wire of the same material and cross section but of length $2L$. The temperature of the wire is raised by the same amount $\Delta T$ in the same time $t$. The value of $N$ is :
→For depositing 1 gm of Cu in copper voltameter on passing 2 amperes of current, the time required will be (For copper Z = 0.00033 gm/C)
Which is not an electrostatic phenomenon:
When a coil of cross-sectional area A and number of turns $N$ is rotated in a uniform magnetic field $B$ with angular velocity $\omega$ then the maximum emf induced in the coil will be.
→In Young’s experiment, monochromatic light is used to illuminate the two slits $A$ and $B. $ Interference fringes are observed on a screen placed in front of the slits. Now if a thin glass plate is placed normally in the path of the beam coming from the slit
→Electric lines of force about negative point charge are
A linearly polarized electromagnetic wave given as $\text{E}=\text{E}_0\hat{\text{i}}\cos(\text{kz}-\omega\text{t})$ is incident normally on a perfectly reflecting infinite wall at $z = a$. Assuming that the material of the wall is optically inactive, the reflected wave will be given as:
→