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(a) increases as its effective length increases even though its centre of man (CM) still reaming at the centre of the bob
(b) Its speed of rotation decreases
(d) will bend with steel on concave side
(c) Mercury
(a) 9 : 4
As the temperating is increases, the time period of pendulum
(a) increases as its effective length increases even though its centre of man (CM) still reaming at the centre of the bob
(a) increases as its effective length increases even though its centre of man (CM) still reaming at the centre of the bob
See lessA Uniform Metallic Rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise its temperating slightly
(b) Its speed of rotation decreases
(b) Its speed of rotation decreases
See lessA bimetallic strip is made of aluminum & steel Al steel (αAl>αsteel) . On heating the strip will
(d) will bend with steel on concave side
(d) will bend with steel on concave side
See lessThe angle of contact at the interface of water glass is 0°, Ethylolcohal–glass is 0°, Merecing–glass is 140° & Methyl iodide-glass is 30°. A glass capillary is put its a trough containing one of these for liquids. It is observed that the meniscus is convex. The liquid in the trough is
(c) Mercury
(c) Mercury
See lessAn ideal fluid flow through a pipe of circular cross section made of two sections with diameters 2.5 cm & 3.75 cm. The ratio of the velocities in the two pipes is
(a) 9 : 4
(a) 9 : 4
See less