Question is ⇒ Atomic and molecular resonance is observed in many substances, Options are ⇒ (A) at microwave frequencies, (B) at low frequencies, (C) at frequencies used in AM broadcast, (D) at both (b) and (c), (E) , Leave your comments or Download question paper.

Question is ⇒ Atomic and molecular resonance is observed in many substances, Options are ⇒ (A) at microwave frequencies, (B) at low frequencies, (C) at frequencies used in AM broadcast, (D) at both (b) and (c), (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Atomic and molecular resonance is observed in many substances
A.	at microwave frequencies [Correct Answer]
B.	at low frequencies [Wrong Answer]
C.	at frequencies used in AM broadcast [Wrong Answer]
D.	at both (b) and (c) [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ An S/N ratio of 3 expressed in db is
4.8 dB
2.4 dB
0.48 dB
0.24 dB

⇒ Some ADCs are

Parallel
Updown
Single slope
Dual slope
Successive approximation
Stair step

Out of above which ones do not use DAC?
1 only
1, 3, 4
1, 2, 3
1, 5, 6

⇒ KCL is a statement of principle of conservation of energy.
TRUE
FALSE

⇒

Assertion (A): In a parallel in-serial out shift register data is loaded one bit-at a time

Reason (R): A serial in-serial out shift register can be used to introduce a time delay.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true

⇒ Some advantages of optical fibre cables are

small diameter
Immunity to cross talk and EM interference
Laser and LED modulation methods lend themselves ideally to digital operation

Which of the above are correct?
1 only
1 and 2
1, 2, 3
2, 3

⇒ Surface integral of the electric field intensity is
differential of volume flux
electrical charge
net flux emanating from the surface
none of the above

⇒ Figure below shows D type Flip-Flops connected as shift register, then outputs Q_D, Q_C, Q_B, Q_A are given
1 and 2 only
2 and 3 only
1, 2 and 3
none of these

⇒ A monostable multivibrator is used to generate PWM because it can
differentiator
integrator
voltage-to-frequency converter
generate pulses

⇒ The opposition of an inductor to current flow
depends only on the resistance of the coil
depends on the magnitude of the applied voltage
varies directly with frequency
varies inversely with frequency

⇒ If f(t) is in volts, then F(jω) is in
volts
volt seconds
volts/sec
volt-sec²

⇒ A series RLC circuit has a resonant frequency of 2000 Hz. The maximum voltage across C is likely to occur at a frequency of about
1000 Hz
4000 Hz
2025 Hz
1975 Hz

⇒ If any term in the first column of a Routh array becomes zero, then
Routh criterion cannot be used to determine stability
Routh criterion can be used by substituting a small positive number for zero and completing the array
Routh criterion can be used by substituting a big positive number for zero and completing the array
Routh criterion can be used by substituting a small negative number for zero and completing the array

⇒ Which of the following is anti-ferromagnetic material?
CrSb
NIO
MnO
All of the above

⇒ Which of the following is operating system?
MS WORD
Ventura
Java
Windows

⇒ Two coupled coils have self inductance L₁ and L₂. The coefficients of coupling is k. The mutual inductance is
k L₁L₂
k²L₁L₂
kL₁L₂
kL₁L₂

⇒ Which of the following is equivalent to x?
x EX-OR 0
x EX-NOR 0
1 NOR x
x AND x

⇒ In the above case, what will be the value of capacitor to obtain 100 kHz frequency?
0.0065 pF
0.0130 pF
0.0260 pF
0.520 pF

⇒ A medium is said to be isotropic when
∈ = 0
∈ = μ
∈ = σ
∈ is scalar constant

⇒ For most metals, Fermi level E_F is less than
0.1 eV
2 eV
5 eV
10 eV

⇒ Which of the following statement about TRIAC is incorrect?
It is not particularly suited to A.C. or mains power control
Any one of its main terminals can be used either as cathode or as anode
It can be triggered in response to both positive and negative gate terminals
None of the above

⇒ FSK is a system involving
pulse modulation
frequency modulation
amplitude modulation
phase modulation

⇒ In a klystron amplifier the transit time of electron passing the gap in the cavity should be
less than one cycle
less than half cycle
less than quarter cycle
more than quarter cycle

⇒ Given I_s = 20 A, V_s = 20 V, the current I in the 3 Ω resistance is give
0.166666666666667
0.333333333333333
0.0833333333333333
16 A

⇒

Assertion (A): Thermistors are commonly used to measure hot spot temperatures in electric machines.

Reason (R): Thermistor has the advantages of high temperature coefficient, small size and high speed of response.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true R is false
A is false R is true

⇒ In the DRAM cell in the figure is the V_t of the NMOSFET is 1 V. For the following three combinations of WL and BL volta
5 V, 3 V, 7 V
4 V, 3 V, 4 V
5 V, 5 V, 5 V
4 V, 4 V, 4 V

⇒ In a piezoelectric crystal, application of a mechanical stress would produce
plastic deformation of the crystal
magnetic Dipoles in the crystal
electric polarization in the crystal
shift in the Fermi level

⇒ Virtual height of an ionospheric layer is always greater than its actual height.
TRUE
FALSE

⇒ As the magnitude of reverse bias is increased, the capacitance of varactor diode
increases
decreases
first increase, then decreases
first decreases then increases

⇒ In floating point representation, the accuracy is
10 bit
9 bit
8 bit
6 bit

⇒ Which of the following is not a valid real constant in C?
426
321
-621.231
201.2314