Question:medium

For an ideal hcp structure, where the atomic spheres touch each other, the ratio of \(\dfrac{c}{a}\) is:

Show Hint

The ideal axial ratio for hcp crystal is \(\frac{c}{a}=1.633\).

Updated On: May 19, 2026

\(1.333\)
\(1.633\)
\(1.433\)
\(1.743\)

Show Solution

The Correct Option is B

Solution and Explanation

Was this answer helpful?

0

Top Questions on Solid State Physics, Devices, Electronics

Draw the energy-band diagram for conductors, semiconductors, and insulators at T = 0 K. How is an electron-hole pair formed in a semiconductor at room temperature?
- CBSE Class XII - 2025
- Physics
- Solid State Physics, Devices, Electronics
View Solution
Carbon and silicon both are members of the IV group of the periodic table and have the same lattice structure. Carbon is an insulator whereas silicon is a semiconductor. Explain.
- CBSE Class XII - 2025
- Physics
- Solid State Physics, Devices, Electronics
View Solution
Consider the following statements:
(A) Built-in potential across a diode reduces with increase in temperature.
(B) Electron concentration of n-type semiconductor equals intrinsic concentration at Curie temperature.
(C) Drain current of MOSFET is a positive temperature coefficient (PTC).
(D) Collector current of BJT has a PTC.
Choose the correct statements:
- CUET (PG) - 2025
- Nanoelectronics
- Solid State Physics, Devices, Electronics
View Solution

Match List-I with List-II:

List-I (Electric field)	List-II (Mobility)
(A) Low electric field	(I) Mobility decreases by \( \frac{1}{E} \)
(B) Medium electric field	(II) Mobility decreases by \( \frac{1}{\sqrt{E}} \)
(C) High electric field	(III) Mobility remains constant

Choose the correct answer:

CUET (PG) - 2025
Nanoelectronics
Solid State Physics, Devices, Electronics

Want to practice more? Try solving extra ecology questions todayView All Questions

Questions Asked in CUET (PG) exam

A trade-off is:

CUET (PG) - 2024
Trade-offs

If a Production Function is given as Q(x,y) = Axay, where (a + b) = 2, the function is said to display:

CUET (PG) - 2024
Production Theory

In an oligopolistic market, firm i and firm j have constant marginal cost = c for an identical good. They compete to set prices Pi and Pj. The demand for total market demand Q, where if \(P_i > P_j\), the demand for firm i is 0. If \(P_i < P_j\), the demand for firm i is Q. If \(P_₁ = P_j\), then they share the market equally and hence the demand for firm i is \(\frac{Q}{2}\). In equilibrium, the prices of firms i and j are:

CUET (PG) - 2024
Oligopoly

If Y = F(L,K) is a linear homogeneous production function, then multiplying all inputs by a constant factor α = 2 results in output increasing by a factor of:

CUET (PG) - 2024
Production Function

In the table below, firm 1 and firm 2 can cooperate to share market profits or compete with each other. The figures in the cells represent the profits in crores of INR. They can either cooperate with each other where they share INR 10 crores equally. Alternatively, they can compete, which lowers the market output to INR 4 crores, which they share equally. If one of the firms competes while the other cooperates, the former obtains INR 10 crore of profit while the other makes zero profit. In equilibrium, firm A and firm B should respectively:

Firm 2	Cooperate	Compete
Firm 1	5, 5	0, 10
Compete	10,0	2, 2

CUET (PG) - 2024
Game theory