angular displacement
Description : If an object moves a circular distance ‘s’ of radius ‘r’, then it's angular displacement is A. s⁄r B. r⁄s C. rs D. r2s
Last Answer : s⁄
Description : The distance moved and the magnitude of displacement are equal in ? (a) The earth is revolving around the Sun (b) Object moving in circular path (c) The pendulum is moving to and fro (d) Object moving on straight road -Science
Last Answer : (d) only. Distance and displacement in all other cases
Description : The angular velocity depends upon the rate of change of the _______. (1) Angular Distance (2) Angular acceleration (3) Angular Displacement (4) torque
Last Answer : (3) Angular Displacement Explanation: The angular velocity is defined as the rate of change of angular displacement and is a vector quantity which specifies the angular speed of an object and the axis about which the object is rotating.
Description : The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is (A) 28.8 sec (B) 41.25 sec (C) 14.52 sec (D) 25.05
Last Answer : (B) 41.25 sec
Description : In physics, a radian per second squared is a unit of: w) angular displacement x) angular velocity y) angular acceleration z) angular momentum.
Last Answer : ANSWER: Y -- ANGULAR ACCELERATION
Description : In physics, a radian per second is a unit of: w) angular displacement x) angular velocity y) angular acceleration z) angular momentum.
Last Answer : ANSWER: X -- ANGULAR VELOCITY
Description : What type of motion the fluid element undergoes, when it changes from one position to another position, such that the angle between the two sides changes? (A) Rotation (B) Translation (C) Linear deformation (D) Angular deformation
Last Answer : (D) Angular deformation
Description : The angular diameter of the sun is 1920". If the distance of the sun from the earth is `1.5xx10^(11)`m, what is the linear diameter of the sun ?
Last Answer : The angular diameter of the sun is 1920". If the distance of the sun from the earth is `1.5xx10^(11)`m, what is the linear diameter of the sun ?
Description : Momentum possessed by spinning objects is called A. linear momentum B. angular momentum C. normal momentum D. degrees' momentum
Last Answer : angular momentum
Description : For body moving with non-uniform velocity and uniform acceleration – (1) Displacement – Time graph (2) Displacement – Time graph (3) Velocity - Time graph is non-linear (4) Velocity - Time graph is linear
Last Answer : (2) Displacement - Time graph Explanation: Displacement-time graph is non linear. Linear motion (also called rectilinear motion) is motion along a straight line, and can therefore be described ... linear motion with variable velocity or non-zero acceleration. The motion of a particle (a point
Description : For a body moving with non-uniform velocity and uniform acceleration (1) Displacement – Time graph is linear (2) Displacement – Time graph is non-linear (3) Velocity – Time graph is nonlinear (4) Velocity – Time graph is linear
Last Answer : Displacement – Time graph is non-linear
Description : If an electron and a photon have the same wavelength, then they will have the same – (1) velocity (2) linear momentum (3) angular momentum (4) energy
Last Answer : (2) linear momentum Explanation: When a non-relativistic electron and a non-relativistic proton are moving and have the same de Broglie wavelength, then they will have the same linear mo-mentum p = mv.
Description : Plank's constant has the dimensions of (1) energy (2) linear momentum (3) angular momentum (4) force
Last Answer : (1) energy Explanation: The Planck's constant (h) can be defined as a pro-portionality constant that relates the energy (E) of a photon to the frequency (?) of its associated electro-magnetic ... Planck constant is named after Max Planck, the instigator of quantum theory, who discovered it in 1900.
Description : When net torque is zero, will be constant - (1) force (2) angular momentum (3) linear momentum (4) acceleration
Last Answer : (2) angular momentum Explanation: Since a torque (rate of change of angular momentum analogous to force) applied over time is equivalent to a change in angular momentum, then if torque is zero, angular momentum is constant.
Description : A jet engine works, on the principle of conservation of - (1) linear momentum (2) angular momentum (3) energy (4) mass
Last Answer : (1) linear momentum Explanation: Linear momentum is a vector quantity defined as the product of an object's mass, m, and its velocity, v. Linear momentum is denoted by the letter p and is called ... for short: Note that a body's momentum is always in the same direction as its velocity vector.
Description : A rocket works on the principle of conservation of ______. (1) mass (2) linear momentum (3) energy (4) angular momentum
Last Answer : (2) linear momentum Explanation: A rocket works by expelling gases from one end at a very high velocity. The escaping gases have a very high speed and this with their mass translates to a very large momentum.
Description : Mass and velocity are combined to give A. angular momentum B. equilibrium C. acceleration D. linear momentum
Last Answer : linear momentum
Description : In linear motion, the energy is given by 1⁄2mv2. Similarly, in rotational motion, the rotational energy is given by A. 1/2 I ω; where I: moment of inertia of the body, ω: angular velocity B. 1/ ... angular velocity D. 1/2 I² ω²; where I: moment of inertia of the body, ω: angular velocity
Last Answer : 1/2 × I × ω²; where I: moment of inertia of the body, ω: angular velocity
Description : What do you understand by linear magnification and angular magnification? Explain how a convex lens is used as a magnifier?
Last Answer : Linear Magnification: The ratio of the size of image to the size of object is called linear magnification. Angular magnification: The ratio of the angle subtended by the image as seen through the optical ... lens used as a magnifier when an object is brought within the focal length of convex lens.
Description : If an electron and a photon have the same wavelength, then they will have the same (1) velocity (2) linear momentum (3) angular momentum (4) energy
Description : Plank’s constant has the dimensions of : (1) energy (2) linear momentum (3) angular momentum (4) force
Last Answer : energy
Description : A convex lens is placed on an optical bench and is moved till it gives a real image of an object at a minimum distance of 80 cm from the latter. Find
Last Answer : A convex lens is placed on an optical bench and is moved till it gives a real image of an object ... cm from the lens, find the position of the image.
Description : 11. If a body floating in a liquid does not return back to its original position and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium. A) Yes B) No
Last Answer : B
Description : If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in (A) Neutral equilibrium (B) Stable equilibrium (C) Unstable equilibrium (D) None of these
Last Answer : Answer: Option B
Description : Deep groove ball bearings are used for (a) heavy thrust load only (b) the small angular displacement of shafts (c) radial load at high speed (d) combined thrust and radial loads at high speed
Last Answer : (d) combined thrust and radial loads at high speed
Description : Pick up the correct statement from the following (A) 1 second of arc corresponds to a displacement ratio of 1:206, 300 (B) 1 degree of arc corresponds to a displacement ratio of 1:57 (C) ... to propagate themselves along a traverse as the square root of the number of stations (D) All the above
Last Answer : (D) All the above
Description : When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as (A) Centre of pressure (B) Centre of gravity (C) Centre of buoyancy (D) Metacentre
Last Answer : Answer: Option D
Description : If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, the body is said to be in __________ equilibrium. (A) Neutral (B) Stable (C) Unstable (D) None of these
Last Answer : Answer: Option A
Description : On the synchro schematic symbol, what indicates the angular displacement of the rotor?
Last Answer : . The position of the arrow.
Description : The angular displacement between two interconnected stations is mainly due to (a) armature reactance of both alternators (b) reactance of the interconnector (c) synchronous reactance of both the alternators (d) all of the above
Last Answer : (a) armature reactance of both alternators
Description : When the interconnector between two stations has large reactance (a) the transfer of power will take place with voltage fluctuation and noise (b) the transfer of power will take place with least loss ... out of step be¬cause of large angular displacement between the stations (d) none of the above
Last Answer : (c) the stations will fall out of step be¬cause of large angular displacement between the stations
Description : In a stepper motor the angular displacement (A) can be precisely controlled. (B) it cannot be readily interfaced with micro computer based controller. (C) the angular displacement cannot be precisely controlled. (D) it cannot be used for positioning of work tables and tools in NC machines.
Last Answer : (A) can be precisely controlled.
Description : In a stepper motor the angular displacement: (A) can be precisely controlled (B) cannot be readily interfaced with micro computer based controller (C) cannot be precisely controlled. (D) cannot be used for positioning of work tables and tools in NC machines
Last Answer : In a stepper motor the angular displacement: can be precisely controlled.
Description : When a mass is rotating in a plane about a fixed point, its angular momentum is directed along: (1) the tangent to the orbit (2) a line perpendicular to the plane of rotation (3) the line making an angle of 45° to the plane of rotation (4) the radius
Last Answer : (2) a line perpendicular to the plane of rotation
Description : Speed of an object travelling around a circle depends upon A. angular velocity B. radius C. circumference D. both A and B
Last Answer : both A and B
Description : In case of negative work the angle between the force and displacement is -Physics
Last Answer : 180° is the correct answer
Description : An object located four focal lengths in front of a thin, converging lens is moved to within two focal lengths of the lens. As a result, does the size of the image produced by the lens increase, decrease or remain the same?
Last Answer : ANSWER: INCREASE
Description : The rate of change of displacement is called: (1) Acceleration (2) Speed (3) Distance (4) Velocity
Last Answer : (4) Velocity Explanation: In considering motions of objects over time the instantaneous velocity of the object is the rate of change of the displacement as a function of time.
Description : Speed of a body in particular direction can be called A. acceleration B. displacement C. velocity D. distance
Last Answer : velocity
Description : The slope of a velocity-time graph represents – (1) acceleration (2) displacement (3) distance (4) speed
Last Answer : (1) acceleration Explanation: A plot of velocity-time is used to determine the acceleration of an object (the slope). If the acteleration is zero, then the velocity-time graph is a horizontal line (i.e ... is positive, then the line is an upward sloping line (i.e., the slope is positive).
Description : A car travelled south-west for 200 miles depicts A. distance B. speed C. velocity D. displacement
Last Answer : displacement
Description : Two sides of a rectangular table are 0.8 m and 1.2 m, the displacement of spider when it runs a distance of 2.0 m is A. 1.5 m B. 1.4 m C. 1.6 m D. 1.7 m
Last Answer : 1.4 m
Description : Correct example of vector quantities could be A. Distance and Speed B. Displacement and Velocity C. Distance and Displacement D. Speed and Velocity
Last Answer : Displacement and Velocity
Description : Gradient of velocity-time graph tells us about object's A. velocity B. displacement C. distance D. acceleration
Last Answer : acceleration
Description : The slope of a velocity-time graph represents (1) acceleration (2) displacement (3) distance (4) speed
Description : The true power indicated by a wattmeter depends on the current flow through the load, the magnitude of the potential across the load, and the _____________. A. power factor of the load B. angle of coil displacement C. inertia of the movable coil D. high resistance from the load
Last Answer : Answer: A
Description : The true power indicated by the pointer movement of a wattmeter depends on the current flow through the load, the magnitude of the potential across the load, and the ____________. A. power factor of the ... B. angle of coil displacement C. inertia of the movable coil D. high resistance from the load
Description : If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by (A) Bowditch's rule (B) Transit rule (C) Empirical rule (D) All of the above
Last Answer : (B) Transit rule
Description : What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate? (A) 0.5 (B) 1 (C) 1.5 (D) 2
Last Answer : (A) 0.5
Description : Independent displacement components at each joint of a rigid-jointed plane frame are (A) Three linear movements (B) Two linear movements and one rotation (C) One linear movement and two rotations (D) Three rotations
Last Answer : (B) Two linear movements and one rotation