Related Questions

Paramagnetic alpha iron changes to gamma iron at
A 770°C
B 912°C
C 1440°C
D 1539°C
Gamma iron exits at following temperature
A Room temperature
B Near melting point
C Between 1400°C and 1539°C
D Between 910°C and 1400°C
Gamma-iron occurs between the temperature ranges of
A 400°C to 600°C
B 600°C to 900°C
C 900°C to 1400°C
D 1400°C to 1530°C
The type of space lattice found in gamma-iron is
A Face centered cubic space lattice
B Body centered cubic space lattice
C Close packed hexagonal space lattice
D None of these
Quartz crystal is most commonly used in crystal oscillators because ___________
A It has superior electrical properties
B It is easily available
C It is quite inexpensive
D None of the above
The crystal oscillator frequency is very stable due to ___________ of the crystal
A Rigidity
B Vibrations
C Low Q
D High Q
If the crystal frequency changes with temperature, we say that crystal has ___________ temperature coefficient
A Positive
B Zero
C Negative
D None of the above
The crystal of alpha iron is
A Body centered cubic
B Face centered cubic
C Hexagonal close packed
D Cubic structure
γ রশ্মির(Gamma Ray) ভেদন ক্ষমতা X- রশ্মির (X-Ray) থেকে– "
A কম
B সমান
C বেশি
D নগন্য
Gamma amino butyric acid (GABA)
A Increases chloride permeability in the neurons
B Acts on post-synaptic membranes
C Has its action terminated by reuptake into neurons
D Is an excitatory transmitter at the CNS
E Has its action selectively blocked by strychnine

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