ASPS-09 Physics Complete Syllabus Quiz

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Questions and Answers

What is the ratio of heat developed in three wires with lengths in the ratio 1 : 5 : 8 and radii in the ratio 1 : 2 : 3 in parallel combination?

  • 40 : 32 : 45
  • 1 : 25 : 64 (correct)
  • 1 : 4 : 9
  • 45 : 32 : 40

In the scenario described, what is the tension in the rope at 2 m from the end where the force is applied?

  • 8 N
  • 4 N
  • Zero (correct)
  • 6 N

When a car of mass (m) accelerates, starting from rest, while the engine supplies constant power P, how does the velocity vary with time (t)?

  • v  t1/2
  • v  t2
  • v  t3/2 (correct)
  • v  t

What is the energy gap of a photodetector used to detect the wavelength of 1700 nm?

<p>0.73 eV (C)</p> Signup and view all the answers

If the position (x) of a particle varies with time as t = x2 + x, what is the acceleration of the particle?

<p>2v3 (A)</p> Signup and view all the answers

What are the dimensions of the constant α in the equation A = A0 e^(-αt)?

<p>[T–2] (D)</p> Signup and view all the answers

If a block takes thrice as much time to slide down a 45° rough inclined plane as it takes to slide down a similar smooth plane, then what is the coefficient of friction?

<p>8/9 (C)</p> Signup and view all the answers

If a 2 kg body moves such that its position x as a function of time t is given by $x = t^4 + 3$, then what is the work done by the force in the first two seconds?

<p>64 J (B)</p> Signup and view all the answers

What is the semi-vertex of the conical pendulum through which a body can perform uniform circular motion, if the string supports 2/3 times its weight?

<p>60° (D)</p> Signup and view all the answers

If a + b = c, then what is the angle between vector 'a' and vector 'b'?

<p>0° (B)</p> Signup and view all the answers

A body floats in water with one-third of its volume above the surface. If it is placed in oil, it floats with half of its volume above the oil surface. What is the specific gravity of the oil?

<p>4/3 (C)</p> Signup and view all the answers

What is the relationship between the speed of a wave pulse and the distance from its free end in a hanging string?

<p>$x^2$ (C)</p> Signup and view all the answers

What is the time period of oscillation of total energy of a harmonic oscillator having angular frequency (ω)?

<p>$\pi$ (A)</p> Signup and view all the answers

If the current through an inductor is given by i = t sin t, then what is the voltage across the 2 H inductor?

<p>$2 \sin t + 2t \cos t$ (C)</p> Signup and view all the answers

At what distance from the center of a spherical shell of mass M and radius R, does a point mass 2M experience gravitational potential equal to $\frac{7GM}{R}$?

<p>$3R$ (C)</p> Signup and view all the answers

If a body has equal amount of rotational kinetic energy and translational kinetic energy while rolling without slipping on a horizontal surface, then what type of body is it?

<p>Solid sphere (B)</p> Signup and view all the answers

Flashcards

Heat ratio in parallel wires

The ratio of heat developed is 1 : 25 : 64.

Tension in a Rope

The tension in the rope at 2 m from the end where the force is applied is zero.

Velocity vs. Time (Constant Power)

Velocity varies with time as v ∝ t3/2.

Photodetector Energy Gap

The energy gap of the photodetector is 0.73 eV.

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Particle Acceleration

Acceleration of the particle is 2αv3.

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Dimensions of α in exponential equation

Dimensions of α are [T–2].

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Friction Coefficient on Inclined Plane

The coefficient of friction is 8/9.

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Work Done on a Moving Body

Work done by the force is 64 J.

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Conical Pendulum Angle

The semi-vertex angle is 60°.

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Angle Between Vectors a and b

The angle between vector 'a' and vector 'b' is 0°.

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Specific Gravity of Oil

Specific gravity of the oil is 4/3.

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Wave Pulse Speed in Hanging String

Wave speed is proportional to $x^2$.

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Oscillation Period of Total Energy

Time period of oscillation of total energy is π.

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Voltage Across Inductor

Voltage across the 2 H inductor is 2 sin t + 2t cos t.

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Gravitational Potential

The distance is $3R$.

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Rolling Body Type

The body is a solid sphere.

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