Dimensional formula for thermal conductivity is
Dimensional formula for thermal conductivity is (here K denotes the temperature): 1) MLT–3 K–1 2) MLT–2 K–2 3) MLT–2 K... View Article
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A Tennis ball is released from a height h and after freely falling on a wooden floor
A Tennis ball is released from a height h and after freely falling on a wooden floor it rebounds and... View Article
Two points charges 4q and –q are fixed on the x-axis
Two points charges 4q and –q are fixed on the x-axis at x = -(d/2) and x = (d/2), respectively.... View Article
Match the CP/CV ratio for ideal gases with different type of molecules:
Match the CP/CV ratio for ideal gases with different type of molecules: Answer:4 γ = Cp/Cv γA = 1... View Article
For a transverse wave travelling along a straight line
For a transverse wave travelling along a straight line, the distance between two peaks (crests) is 5m, while the distance... View Article
A beam of plane polarised light of large cross-sectional area and uniform intensity
A beam of plane polarised light of large cross-sectional area and uniform intensity of 3.3 Wm-2 falls normally on a... View Article
The specific heat of water = 4200 J kg–1K–1 and the latent heat of ice
The specific heat of water = 4200 J kg–1K–1 and the latent heat of ice = 3.4 × 105 J... View Article
Given figure shows few data points in a photo-electric effect experiment for a certain metal.
Given figure shows few data points in a photo-electric effect experiment for a certain metal. The minimum energy for ejection... View Article
Blocks of masses m, 2m, 4m and 8m are arranged in a line on a frictionless floor.
Blocks of masses m, 2m, 4m and 8m are arranged in a line on a frictionless floor. Another block of... View Article
Particle A of mass mA=m/2 moving along the x-axis with velocity v0
Particle A of mass mA=m/2 moving along the x-axis with velocity v0 collides elastically with another particle B at rest... View Article
A wire A, bent in the shape of an arc of a circle, carrying a current of 2A
A wire A, bent in the shape of an arc of a circle, carrying a current of 2A and having... View Article
An air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s–2.
An air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s–2. The density of water... View Article
Two charged thin infinite plane sheets of uniform surface charge density
Two charged thin infinite plane sheets of uniform surface charge density σ + and σ –, where| σ +| >... View Article
A battery of 3.0V is connected to a resistor dissipating 0.5 W of power.
1) 0.072 W 2) 0.10 W 3) 0.125 W 4) 0.50 W Answer: 2 PR = 0.5 W ⇒ i2R... View Article
A small bar magnet is moved through a coil at constant speed from one end to the other
A small bar magnet is moved through a coil at constant speed from one end to the other. Which of... View Article
On the x-axis and at a distance x from the origin, the gravitational field due a mass distribution is given by
On the x-axis and at a distance x from the origin, the gravitational field due a mass distribution is given... View Article
Choose the correct option relating wave lengths
Choose the correct option relating wave lengths of different parts of electromagnetic wave spectrum: 1) λ radio waves > λ... View Article
A small bar magnet placed with its axis at 30° with an external field of 0.06 T
A small bar magnet placed with its axis at 30° with an external field of 0.06 T experiences a torque... View Article
Starting from the origin at time t = 0, with initial velocity [latex]5hat{j}ms^{-1}[/latex], a particle moves in the x-y plane
Starting from the origin at time t = 0, with initial velocity \(\begin{array}{l}5\hat{j}ms^{-1}\end{array} \), a particle moves in the x-y... View Article
When an object is kept at a distance of 30 cm from a concave mirror
When an object is kept at a distance of 30 cm from a concave mirror, the image is formed at... View Article
