MCQ
For a crystal system, $a = b = c,\alpha = \beta = \gamma, \neq 90^{0}$, the system is
- ATetragonal system
- BCubic system
- COrthorhombic system
- ✓Rhombohedral system
✓
Answer
Correct option: D.
Rhombohedral system
d
(d)For tetragonal, cubic and orthorhombic system
(d)For tetragonal, cubic and orthorhombic system
$\alpha = \beta = \gamma = 90^\circ .$
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
Assertion : The ferromagnetic substance do not obey Curie’s law.
Reason : At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.
E denotes electric field in a uniform conductor, I corresponding current through it, $V_d$ drift velocity of electrons and P denotes thermal power produced in the conductor, then which of the following graph is incorrect
→The nuclear reaction $^2H{ + ^2}H \to {\,^4}He$ (mass of deuteron $= 2.0141 \,a.m.u.$ and mass of $He = 4.0024 \,a.m.u.$) is
→From a supply of identical capacitors rated $8 \mu F, 250 V,$ the minimum number of capacitors required to form a composite $16 \mu F, 1000 V$ capacitor is:
→Curie temperature is the temperature above which:
$3$ identical bulbs are connected in series and these together dissipate a power $P$. If now the bulbs are connected in parallel, then the power dissipated will be
→The half life of a radioactive sample undergoing $\alpha$ - decay is $1.4 \times 10^{17}$ s. If the number of nuclei in the sample is $2.0 \times 10^{21}$, the activity of the sample is nearly
→In a Young's double slit experiment $15$ fringes are observed on a small portion of the screen when light of wavelength $500 \;\mathrm{nm}$ is used. Ten fringes are observed on the same section of the screen when another light source of wavelength $\lambda$ is used. Then the value of $\lambda$ is (in $\mathrm{nm})$
→Identify the gate and match $A, B, Y$ in bracket to check
→The impedance of a series $\text{L - C - R}$ circuit in an $AC$ circuit is.
→