Maharashtra State BoardHSC Science (General) 11th
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HSC Science (General) 11th - Maharashtra State Board Question Bank Solutions for Physics

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Physics
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Choose the correct option.

A light year is a unit of ______.

[0.01] Units and Measurements
Chapter: [0.01] Units and Measurements
Concept: Introduction of Units and Measurements

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The resultant of two forces 10 N and 15 N acting along +x and - x-axes respectively, is

[0.02] Mathematical Methods
Chapter: [0.02] Mathematical Methods
Concept: Vector Analysis

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For two vectors to be equal, they should have the

[0.02] Mathematical Methods
Chapter: [0.02] Mathematical Methods
Concept: Vector Analysis

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The magnitude of scalar product of two unit vectors perpendicular to each other is

[0.02] Mathematical Methods
Chapter: [0.02] Mathematical Methods
Concept: Vector Analysis

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The magnitude of the vector product of two unit vectors making an angle of 60° with each other is

[0.02] Mathematical Methods
Chapter: [0.02] Mathematical Methods
Concept: Vector Analysis

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If `vec"A", vec"B" and vec"C"` are three vectors, then which of the following is not correct?

[0.02] Mathematical Methods
Chapter: [0.02] Mathematical Methods
Concept: Vector Analysis

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An object thrown from a moving bus is on example of _____.

[0.03] Motion in a Plane
Chapter: [0.03] Motion in a Plane
Concept: Introduction to Motion in a Plane

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For a particle having a uniform circular motion, which of the following is constant

[0.03] Motion in a Plane
Chapter: [0.03] Motion in a Plane
Concept: Introduction to Motion in a Plane

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The bob of a conical pendulum undergoes

[0.03] Motion in a Plane
Chapter: [0.03] Motion in a Plane
Concept: Introduction to Motion in a Plane

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For uniform acceleration in rectilinear motion which of the following is not correct?

[0.03] Motion in a Plane
Chapter: [0.03] Motion in a Plane
Concept: Introduction to Motion in a Plane

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If three particles A, B and C are having velocities `vec"V"_"A" + vec"V"_"B" and vec"V"_"C"` which of the following formula gives the relative velocity of A with respect to B?

[0.03] Motion in a Plane
Chapter: [0.03] Motion in a Plane
Concept: Introduction to Motion in a Plane

Answer the following question.

Separate the following in groups of scalar and vectors:

velocity, speed, displacement, work done, force, power, energy, acceleration, electric charge, angular velocity

[0.03] Motion in a Plane
Chapter: [0.03] Motion in a Plane
Concept: Introduction to Motion in a Plane

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Consider the following pair of forces of equal magnitude and opposite directions:

P. Gravitational forces exerted on each other by two-point masses separated by a distance.

Q. Couple of forces used to rotate a water tap.

R. Gravitational force and normal force experienced by an object kept on a table.

For which of these pair/pairs the two forces do not cancel each other’s translational effect?

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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Consider following forces: (w) Force due to tension along a string, (x) Normal force given by a surface, (y) Force due to air resistance, and (z) Buoyant force or upthrust given by a fluid.
Which of these are electromagnetic forces?

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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At a given instant three-point masses m, 2m and 3m are equidistant from each other. Consider only the gravitational forces between them. Select correct statement/s for this instance only:

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of a block along with the table, which is proportional to the resultant normal force given by the table. Forces F1 and F2 act at the same angle T with the horizontal and both are just initiating the sliding motion of the block along with the table. Force F1 is a pulling force while the force F2 is a pushing force. F2 > F1, because

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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A mass 2m moving with some speed is directly approaching another mass m moving with double speed. After some time, they collide with a coefficient of restitution 0.5. The ratio of their respective speeds after the collision is

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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A uniform rod of mass 2m is held horizontal by two sturdy, practically inextensible vertical strings tied at its ends. A boy of mass 3m hangs himself at one-third length of the rod. The ratio of the tension in the string close to the boy to that in the other string is

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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Select the wrong statement about the centre of mass:

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion

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For which of the following objects will the center of mass not be at their geometrical center?

(I) An egg
(II) a cylindrical box full of rice
(III) a cubical box containing assorted sweets

[0.04] Laws of Motion
Chapter: [0.04] Laws of Motion
Concept: Introduction to Laws of Motion
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