poliomyelitis : poliovirus :AIDS :_____ 2) Chickenpox direct contact tuberculosis : ___ 3) typhoid alimentary canal Japanese encephalitis : ___

Which Statement among the following are CORRECT ? I. The upper surface of the tongue has small projections called papillae, some of which bear taste buds. II. The serosa is the innermost layer of the alimentary canal and is made up of a thin mesothelium ( epithelium of visceral organs ) with some connective tissue . III. The live is the largest glands of the body weighing about 4.3 to 5 kg in an adult human. IV. During the process of digestion, the stomach stores the food for 2 - 3 hours.

Figure depicts microsopic structure of the intestinal wall of alimentary canal. Study the figure and answer the following question? (i) The wall of alimentary canal consists of 4 main concentric coats labelled as 1,2,3 and 4. Name these coats. (ii) The coat marked 2 has two layers marked as 5 and 6. Between these two layers is a network of nerve cells and para-sympathetic nerve fibres called..... It controls the ....... (iii) The coat marked 3 is highly vasucular connective tissue having another network of nerve cells and sympathetic nerve fibres called...... . it controls the secretion of ........ (iv) Name the parts labelled as 7 and 8

Consider the following diseases: 1. Cholera 2. Tuberculosis 3. Filariasis 4. Typhoid Which of the above diseases are caused by bacteria?

A uniform rod of length L and mass M is lying on a frictionless horizontal plane and is pivoted at one of its ends as shown in Fig. There is no friction at the pivot. An inelastic ball of mass m is fixed with the rod at a distance L//3 from O . A horizontal impulse J is given to the rod at a distance 2L//3 from O in a direction perpendicular to the rod. Assume that the ball remains in contact with the rod after the collision and impulse J acts for a small time interval /_\t . Now answer the following questions: Find the impulse acted on the ball during the time /_\t

A uniform rod of length L and mass M is lying on a frictionless horizontal plane and is pivoted at one of its ends as shown in Fig. There is no friction at the pivot. An inelastic ball of mass m is fixed with the rod at a distance L//3 from O . A horizontal impulse J is given to the rod at a distance 2L//3 from O in a direction perpendicular to the rod. Assume that the ball remains in contact with the rod after the collision and impulse J acts for a small time interval /_\t . Now answer the following questions: Find the resulting instantaneous angular velocity of the rod after the impulse.

A uniform rod of length L and mass M is lying on a frictionless horizontal plane and is pivoted at one of its ends as shown in Fig. There is no friction at the pivot. An inelastic ball of mass m is fixed with the rod at a distance L//3 from O . A horizontal impulse J is given to the rod at a distance 2L//3 from O in a direction perpendicular to the rod. Assume that the ball remains in contact with the rod after the collision and impulse J acts for a small time interval /_\t . Now answer the following questions: Find the magnitude of the impulse applied by the during the time interval /_\t

The vertical section of a road over a canal bridge in the direction of its length is in the form of circle of radius 8.9 metre. Then the greatest spped at which the car can cross this bridge wihout losing contact with the road at its hgihest point, the centre of gravity of the car being at a height h = 1.1 metre from the ground. Take g = 10 m/sec2-