When you visit the doctor afterseeing your grandfather’s eye problem. He said that it is the problem of accommodation in his eye. Analyze which part of the eye ball is relateddn this function?

Write down the function of part of the eye ball as given: Cornea

Suppose a person wears convex galsses for proper vision. Where you think the image of the object is formed in his eyes when he is not using the glasses

Make a dilute solution of the acid that is used i your home to clean bathrooms, very carefully, avoiding contact of the acid with your skin or eyes. Divide this solution into two parts and place it in two small glasses. In one glass add pieces of marle and in the other add marble dust.Does the same phenomenon happen in both cases? If not, which takes more time?

Answer briefly : (a) How do you perceive the colour of an object ? (b) Which part of our body helps us in maintaining the body balance ? (c) How does the eye regulate the amount of light that falls on the retina.

A man is moving away from a tower 41.6 m high at the rate of 2 m/sec. Find the rate at which the angle of elevation of the top of tower is changing, when he is at a distance of 30m from the foot of the tower. Assume that the eye level of the man is 1.6m from the ground.

Parts A, B, C, D of the human eye are shown in the diagram. Select the option which gives correct identification along with the functions/characteristics :

Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/ characteristics

Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?

List which of the following are unconditional and which are conditional reflexes- Swimming, Blinking or eyes when strong light falls into the eyes, Crying of child when she/he is hungry, Cycling.