Circle the odd one :
Bottle opener, screw, nut cracker, fishing rod

Circle the odd one : Single touch, Double touch, Induction method, Electrolysis

Circle the odd one : Work done, Force xx Effort, Load xx Load arm, Effort xx Effort arm

Circle the odd one : Class 2 lever, MA lt 1, MA gt 1, Force multiplier

The meehanism behind nut and bolt arrangement also works for screw gauge. In case of nut and bolt mechanism, with rotation of bolt, it has translational movement also. In one complete rotation of bolt, tip of bolt moves by a linear distance equal to linear distance between two consecutive threads on the screw, known as pitch in case of screw gauge, the circular scale is divided in several parths. The ratio of pitch and total number of divisions on circular scale is known as least count. Spherometer is a device used to measure very small distances such as radius of curvature and thicness of thin plate. The screw gauge can be used to meaure diameter of a spherical sample. A screw gauge has 100 divisions on head scale and in 8 rotations distance covered is 8 mm. A screw gauge has which of the following characteristics ?

The meehanism behind nut and bolt arrangement also works for screw gauge. In case of nut and bolt mechanism, with rotation of bolt, it has translational movement also. In one complete rotation of bolt, tip of bolt moves by a linear distance equal to linear distance between two consecutive threads on the screw, known as pitch in case of screw gauge, the circular scale is divided in several parths. The ratio of pitch and total number of divisions on circular scale is known as least count. Spherometer is a device used to measure very small distances such as radius of curvature and thicness of thin plate. The screw gauge can be used to meaure diameter of a spherical sample. A screw gauge has 100 divisions on head scale and in 8 rotations distance covered is 8 mm. Least count of given screw gauge is

A weightless rigid rod AB of length / connects two equal masses m one particle is fixed at the end B and the other at the middle ofthe rod as shown in the figure-5.131. The rod can rotate in the vertical plane freely around the hinge point/4. Choose the correct option(s) A. The minimum horizontal velocity required to be given to the particle B so as to make the rod go around in the complete vertical circle is sqrt((24 gl)/(5)) B. The minimum horizontal velocity required to be given to the particle B so as to make the rod go around in the complete vertical circle is sqrt((24 gl)/(g)) C. The ratio of compressive force in the rods AC and BC is 2:1 when the masses are at highest point. D. The ratio of compressive force in the rods AC and BC is 3:1 when the masses are at highest point.

One end of a light rod of length 1m is attached with a string of length 1m. Other end of the rod is attached at point O such that rod can move in a vertical circle. Other end of the string is attached with a block of mass 2kg. The minimum velocity that must be given to the block in horizontal direction so that it can complete the vertical is (g=10 m//s^(2))

In each set of terms given below, there is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd terms in each set and name the category to which the remaining three belong. Example: Eye, Ear, Nose, Lungs Odd term: Lungs Category: Sense organs i. Malleus, Iris, Incus, Stapes ii. Amoeba, Euglena, Bacteria, Paramoecium iii. Snake, Fish, Earthworm, Bird iv. Squamous, Muscular, Columnar, Cuboidal v. Pitcher plant, Rose plant, Venus fly trap, Sundew

Figure shows a light rod of length l rigidly attached to a small heavy block at one end and a hook at the other end. The system is released from rest with the rod in a horizontal position. There is a fixed smooth ring at a depth h below the initial position of the hook and the hook gets into the ring as it reaches there. What should be the minimum value of h so that the block moves in a complete circle about the ring?

A small, electrically charged bead can slide on a circular, frictioless, insulating rod. A point - like electric dipole (vec(P)) is fixed at the centre of the circle with the dipole.s axis lying in the plane of the circle. Intially the bead is on the plane of symmetry of the dipole, as shown in the figure. The bead is slightly displaced along ring, tangentially with intial speed very close to zero. (Ignore the effect of gravity, assuming that the electric forces are much greater than the gravitational ones). How would the bead move in the absence of rod (intial motion is perpendicular to and negligibly small)