25251. A key that will erase information from the computer’s memory and characters on the screen?
25252. A string of length 90 cm is fastened to two points A and B at the same level 60 cm apart. A ring weighing 120 g is slided on the string. A horizontal force P is applied to the ring such that it is in equilibrium vertically below B. The value of P is :
25253. The reaction at the support A of the beam shown in below figure is
25254. India Wins Freedom was authored by:?
25255. UN General Assembly elects a President and how many Vice President at the Start of its each regular Session?
25256. Two forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is
25257. The C.G. of a right circular cone lies on its axis of symmetry at a height of
25258. A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is
25259. If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is
25260. The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface
25261. An instrument which does the functions of human brain is?
25262. Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation
25263. Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of
25264. A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is
25265. A body is said to move with Simple Harmonic Motion if its acceleration, is
25266. One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The reaction between the sphere and the wall of the arrangement made is
25267. Which one of the following laws is not applicable to a simple pendulum ?.
25268. The ratio of the reactions RA and RB of a simply supported beam shown in below figure is
25269. Effect of a force on a body depends upon its
25270. The resultant of the forces acting on a body will be zero if the body
25271. A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be
25272. A pilot flies a small plane in a vertical loop of radius r. At the top of its trajectory he experiences weightlessness. If the acceleration due to gravity is g, the speed of the plane at the top of its trajectory would be
25273. Choose the word wrongly spelt:?
25274. A Seconds pendulum executes
25275. Amongst the following, for whose removal parliament’s resolution is not needed?
25276. For maximum range of a projectile, the angle of projection should be
25277. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is
25278. Pick up the correct statement from the following for the structure shown in below figure.
25279. A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is
25280. What is the distance between the opposite sides of wickets in Cricket?
25281. According to Law of Triangle of Forces
25282. A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length
25283. The following is not a law of static friction :
25284. The velocity of a moving body, is
25285. A spring scale in a stationary lift shows a reading of 60 kg for a man standing on it. If the lift starts descending at an acceleration of g/5, the scale reading would be
25286. The resolved part of the resultant of two forces inclined at an angle θ in a given direction is
25287. The world population day is observed in?
25288. The following statement is one of the laws of Dynamic friction
25289. A 50 kg boy climbs up a 8 m rope in gymnasiam in 10 sec. The average power developed by the boy is approximately
25290. Lami's theroem states that
25291. Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,
25292. If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along
25293. For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is
25294. Power can be expressed as
25295. The chief characteristic of the Rig Vedic religion was?
25296. If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is
25297. 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
25298. The units of moment of inertia of an area, are
25299. To avoid bending action at the base of a pier,
25300. For a body moving with simple harmonic motion, the number of cycles per second, is known as its