MCQ
Crystal structure is studied by:
- AUltraviolet rays
- ✓X-rays
- CInfrared radiations
- DMicro waves
✓
Answer
Correct option: B.
X-rays
(b)X-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 Young's double slit experiment is performed in water:
A wire when connected to 220V mains supply has power dissipation 
. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is 
. Then 
is
|
(a) 1 |
(b) 4 |
(c) 2 |
(d) 3 |
Heavy water is used as moderator in a nuclear reactor. The function of the moderator is
|
(a) To control the energy released in the reactor |
|
(b) To absorb neutrons and stop chain reaction |
|
(c) To cool the reactor faster |
|
(d) To slow down the neutrons to thermal energies |
A student connects a coil of wire with a sensitive galvanometer as shown in figure. He will observe the deflection in the galvanometer if bar magnet is:
L, C and R represent the physical quantities inductance, capacitance and resistance respectively. Which of the following combinations have dimensions of frequency?
→- $\frac{1}{\text{RC}}$
- $\frac{\text{R}}{\text{L}}$
- $\frac{1}{\sqrt{\text{LC}}}$
- $\text{C}/\text{L}$
Let IA and IB be moments of inertia of a body about two axes A and B respectively. The axis A passes through the centre of mass of the body but B does not:
- IA < IB.
- If IA < IB, the axes are parallel.
- If the axes are parallel, IA < IB.
- If the axes are not parallel IA > IB.
Magnetic field in a current carrying solenoid is B. If length of the solenoid and current flowing through the solenoid is doubled, keeping the number of turns same, the magnitude of magnetic field in the solenoid will be:
Work function of metal is $\phi$ and wavelength of incident light is $\lambda$. Which condition should be followed for not emitting the photo-electrons ?
→A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure. The time variation of the magnitude of e.m.f. generated across the coil during one cycle is
(a)
|
(b)
|
(c)
|
(d)
|
For television broadcasting, the frequency employed is normally
|
(a) 30-300 MHz |
(b) 30-300 GHz |
(c) 30-300 KHz |
(d) 30-300 Hz |