Related Questions
What is the correct answer?
4
Cartesian form of the equation of catenary is
What is the correct answer?
4
The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then,
D. None of the above is correct
What is the correct answer?
4
Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,
A. Dip of the cable increases
B. Length of the cable increases
C. Dip of the cable decreases
What is the correct answer?
4
The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity The correct answer is
What is the correct answer?
4
If two equal forces of magnitude P act at an angle θ, their resultant, will be
What is the correct answer?
4
In simple harmonic motion, acceleration of a particle is proportional to
A. Rate of change of velocity
What is the correct answer?
4
A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length
C. Is not changed but weight of the bob is increased
D. Is not changed but weight of the bob is decreased
What is the correct answer?
4
If the velocity of projection is 4 m/sec and the angle of projection is α°, the maximum height of the projectile from a horizontal plane, is
What is the correct answer?
4
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called
What is the correct answer?
4
Pick up the correct statement from the following:
A. Nature plays an important role in the launch of a satellite
B. The earth's gravity reduces the speed of a satellite by 32 km per second
C. The gravitational force relents as the satellite climbs higher
What is the correct answer?
4
If two forces each equal to T in magnitude act at right angles, their effect may be neutralised by a third force acting along their bisector in opposite direction whose magnitude will be
What is the correct answer?
4
To double the period of oscillation of a simple pendulum
A. The mass of its bob should be doubled
B. The mass of its bob should be quadrupled
C. Its length should be quadrupled
D. Its length should be doubled
What is the correct answer?
4
The motion of a bicycle wheel is
C. Rotary and translatory
What is the correct answer?
4
The velocity of a moving body, is
What is the correct answer?
4
If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are
What is the correct answer?
4
The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is
What is the correct answer?
4
If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and floor, is
What is the correct answer?
4
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping? (i) 1.0 in from the wall (ii) 1.732 m from the wall (iii) 1.0 m above the floor (iv) 1.732 m above the floor The correct answer is
What is the correct answer?
4
A Seconds pendulum executes
What is the correct answer?
4
A block in the shape of a parallelepiped of sides 1m × 2m × 3m lies on the surface. Which of the faces gives maximum stable block?
D. Equally stable on all faces
What is the correct answer?
4
The moment of inertia of a triangular section (base b, height h) about centroidal axis parallel to the base, is
What is the correct answer?
4
The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed
B. Tangentially at that point
What is the correct answer?
4
In a simple harmonic motion, the position of equilibrium is always
What is the correct answer?
4
According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centres lie on
What is the correct answer?
4
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to
What is the correct answer?
4
A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in
What is the correct answer?
4
If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is
What is the correct answer?
4
A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be
A. 200 tonnes at the centre
B. 500 tonnes at the centre
C. 200 tonnes at the right support
D. 200 tonnes at the left support
What is the correct answer?
4
On a mass m describing a circular path of radius r, the centrifugal force
A. Acts tangentially to the circular path
B. Acts towards the centre of rotation
C. Acts away from the centre of rotation
What is the correct answer?
4
The C.G. of a right circular cone lies on its axis of symmetry at a height of