IIT JAM Physics MCQ Test 12 - Physics MCQ

The graph of [logρ vs. 1/T] can be expressed as:-

Which is correct logic diagram of the simplified form of given boolean expression

F(ABC) = (A + B + AB) (A + C + AC) has simplified expression

An OPAMP has a slew rate of 5 V/μs. The largest sinewave output voltage possible at a frequency of 1 MHz is

For the logic circuit shown in the figure below, the output Y is equal to

The output voltage of an OPAMP for input voltage of V_i1 = 150 μV , V_i2 = 140μV if the amplifier has a differential gain of A_d = 4000 and the value of CMRR is 100, is

A non-inverting op-amp summer is shown in the figure. The output voltage V_o will be

The Q point of the transistor circuit given below is

The saturation current for the given network is

The value of V_CE for the voltage - divider bias configuration is

For the CB circuit shown below in figure ; The value of ‘ I_c ’ will be:-  ( Assume The transistor to be of silicon)

Choose the correct statement

For the given circuit we have R₁ = 6 kΩ, R_f = 24 kΩ, V_i = 1 V and load resistor of 6 kΩ. Then

Fora differential amplifier in which the signal applied to inverting and non inverting term inals are respectively = - 0.45 m V and + 0.48 m V and A _diff = 10⁶ and CMRR = 80 dB.

In a given n-type silicon material, the donar concentration is 1 atom per 2 * 10⁸ silicon atoms. Assuming that the effective mass of the electron is equal to its true mass. Given that density of atoms in silicon = 5 * 10²⁸ atoms/m³. Which of the following statement is correct.

For the circuit shown below:-


Which of the following statement(s) is/are correct?

If a transistor has again of 20 dB, then the ratio of output to input power is_____.

An CE transistor amplifier has a collector current of 1.0mA when its base current is 25μA at room temp. What is the value of its input resistance (in ohms)?

A transistor having α = 0.99 & V_BE = 0.7V is used in the circuit shown figure. What is the value of collector current (in mA)?

For the circuit, 
If the saturation current is 10^-16A . Find the value of base-emitter voltage (in V).

If  then calculate the value of  ?

A String under a tension of 129.6 N produces 10 beats per sec when is vibrated along with a tuning frok. when tension in the string is increased to 160N, it sounds in unison with the same tuning frok. calculate the fundamental frequency of a tuning frok? (in Hz)

A column of air at 51^oC & a tuning frok produce 4 beats per sec. when sounded togther. As the temperature of the air column is decreased, the number of beats sec tends to decrease & when the temperature is 16^oc , the two produce 1 beat per sec find the frequency of the tuning frok (in Hz)

Calculate the thickness of a soap bubble film (refractive index μ =1.3) that will result in constructive interference in the reflected light if the film is illuminated with light whose wavelength in free space is 5000 A⁰ (Thickness (+) is in A^o)?

In the given circuit V_cc = 8V and β = 80 for the n-p-n transistor.The collector voltage V_c (in volts) is_____.

The maximum value of RL so that zener diode is 'ON ' is______(in kΩ).