The bulb does not glow in the set up show in figure. List the possible reasons.

A man has fallen into a ditch of width d and two of his friends are slowly pulling him out using a light rope and two fixed pulleys as shown in figure. Show that the force (assumed equal for both the friends) exerted by each friend on the road increases as the man moves up. Find the force when theman is at a depth h.

In a Biology practical class, your subject teacher has placed a glass slide showing transverse section of dicot stem. State any two possible reasons to call the slide is a T.S of dicot stem.

The above lac operon is not working due to some reason. State the reason and redraw the figure, showing suitable changes

a. The following are the important steps in plant breeding for developing a new plant variety. List them in the correct order: i. Seed multiplication ii. Release of a variety iii. Distribution iv. Evaluation v. Creation of genetic variation vi. Selection b. In spite of the proper application of fertilizers, irrigation and pest and disease control the yield, quality and disease and pest resistance of a self pollinated crop variety is decreasing generation after generation. Suggest a possible reason for this experience. Hint: The farmer is using seed collected from his own field for raising successive crops.

A light bulb and an open coil inductor are connected to an ac source through a key as shown in figure. The switch is closed and after sometime, an iron rod is inserted into the interior of the inductor. The glow of the light bulb (a) increases, (b) decreases, (c) is unchanged, as the iron rod is inserted. Give your answer with reasons.

The figure shows a relationship between the sets P and Q . Write the relation in set- builder form

The figure shows a relationship between the sets P and Q . Write the relation roster form

The figure shows a relationship between the sets P and Q . Write the relation what is its domain and range ?