List of top Physics Questions

In an actual regenerative Rankine cycle, the net work out put will be _____ as compared to simple Ranking cycle.
Given below are two statements:
Statement I: A series RLC circuit is said to be in resonance when current delivered by the source is in phase with the source voltage.
Statement II: Power factor of a series RLC is zero, if circuit is in resonance condition.
In the light of the above statements, choose the correct answer from the options given below:
Value of R such that the circuit, shown below, is resonant
The radius of Mohr's circle of stress of a stressed element is 30 N/mm2 and minor principal tensile stress is 15 N/mm2. The major principal stress is:
The Lissajous figure of two rectangular SHMs of equal frequency and phase difference of π/2 is
What would be the approximate kinetic energy of a piece of rock, weighing 1 kg, just before it hits the earth's surface from a height of 20 meters ?
The SI system has seven basic units and these units pertain to the seven fundamental scientific quantities which one is not in the list of seven SI units-
What is the kinetic energy of an electron in the lowest energy level of a hydrogen atom?
Given below are two Statement:
Statement I: Speed is a vector quantity
Statement II: Velocity is a scalar quantity
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements:
Statement I: Accuracy is the degree of agreement between the measured value and the accepted true value of the given parameter.
Statement II: Determinate error are random in nature and occur when something went wrong during the measurement.
In the light of the above Statements, choose the correct answer from the options given below:
A scale of 1 inch = 50 ft is mentioned on an old map. What is the corresponding equivalent scale?
The arithmetical check for Height of Instrument method (HI) is -
Given below are two statements:
Statement I: Kinetic energy of the wind is proportional to (velocity).
Statement II: Kinetic energy of the wind is proportional to area of sweep of wind turbine and also on Air density.
In the light of the above statements, choose the most appropriate answer from the options given below:
A truss ABC loaded at B with a force of 10 kN as shown in the figure. The force in the member AC is:
Given \(\overrightarrow A\)x \(\overrightarrow B\) = \(\overrightarrow C\),
Where \(\overrightarrow A = x\hat i+y\hat j+3\hat k\), \(\overrightarrow B = y\hat î + x\hat j + 2\hat k\), \(\overrightarrow C=-5\hat î+5\hat k\) 
Find the value of x and y
Given below are two statements:
Statement - I: The formula of correct length is \(\frac{\text{Measure of length}}{\text{Nominal length of Tape}}\) × Actual length of tape.
Statement - II: The formula of sag correction is - \(\frac{-W^2}{24P^2}\times L\).
In the light of the above statements, choose the correct answer from the options given below :
In the given question, choose the correct sequence of four statements given below:
A. It was found that the charge determined in each case
B. Which reveals that charge is quantised
C. When the experiment was repeated for a number of times
D. Was an integral multiple of elementary charge.
Choose the correct answer from the options given below.
Five Carnot engines operate between reservoir temperatures of
A. 100 K and 500 K
B. 200 K and 500 K 
C. 400 K and 500 K 
D. 200 K and 800 K
E. 200 K and 400 K 
Arrange the engines according to their decreasing efficiencies.
Choose the correct answer from the options given below.
Find the output voltage of a non-inverting OP-AMP having \(R_1\) = 100 kΩ, \(R_f\) = 500 kΩ, when the input signal is of 2.0 V.
The two lines AB and CD shown in h-s curve are, respectively:
In terms of total primary energy consumption. At present India stands at what position?
Human ear normally hears sounds originating from the vibrating objects with a frequency between
Which section of research proposal provides background information and a critique of previous research done on the topic?
Match List I with List II
LIST I (Characteristic Equation)LIST II (Nature of Output)
A\(S^2+18S+64\)IUnderdamped
B\(S^2+25\)IICritically damped
C\(S^2+12S+36\)IIIUndamped
D\(S^2+8S+25\)IVOverdamped
Choose the correct answer from the options given below:
Choose the correct statements.
A. In CSI input current is Variable.
B. CSI requires feedback diodes.
C. Both controlled and uncontrolled switches are used in CSI.
D. CSI does not require filters.
E. CSI circuit requires large inductance.
Choose the correct answer from the options given below: