Do you think landline phones work on the same idea as that of the string telephone?

Now , measure the length of a bench by means of the span of your hand . Ask your friends to do the same . Did each of you obtain the same measure for that bench ? What could be the reason ?

Questions based on paragraph Ravi visited the doctor, complaining about fever and cold. The doctor suspected it to be a bacterial infection of the respiratory tract. He told Ravi that it may be a case of mild pneumonia and prescribed an appropriate dosage of ampicillin. He advised him to complete the treatment even if he started feeling better immediately.Based on the above passage, answer the questions According to the treatment prescribed, do you think the doctor knows the specific bacteria causing the infection? Explain.

Do you think some force is constantly acting on the moon ?

Do you think Mendel's laws of inheritance would have been different if the characters that he chose were located on the same chromosome.

You have learnt how to calculate the work done on an object when the displacement is in the direction of the applied force. But if the displacement is not in the direction of the applied force, how do we calculate the amount of work done

Read the following paragraph and answer the following questions given below it : Construction of a compound microscope : (i) Acompound microscope consists of a metal tube fitted with two convex lenses at the two ends. These lenses are called the objective lens ( the lens directed towards the object ) and the eyepiece ( the lens directed towards the eye ). Both the lenses are small in size , but the cross section of the objective lens has a short focal length . the focal length of the eyepiece is more than that of the objective lens . (ii) The metal tube is mounted on a stand . thr principal axes of the objective lens and the eyepiece are along the same line . The distance between the object and objective lens can be changed with a screw . It is possible to change the distance between the objective lens and the eyepiece. Working : (i) The object to be observed is illuminated and placed in front of the objective lens. slightly beyond the focal length of the objective lens. it's real , inverted and enlarged image is formed by the objective lens on the other side. (ii) This intermediate image lies with in the focal length of the eyepiece. It serves as an object for the eyepiece. The eyepiece works as a simple microscope . the final image is virtual, highly enlarged and inverted with respect to the original object . It can be formed at the minimum distance of distinct vision from the eyepiece . The final image is observed by keeping the eye close to the eyepiece. Use: This microscope is used to observe blood cells , microorganisms , etc. Where do you place the object to be observed with a compound microscope ?

Why do you think the zygote is dormant for sometime in a fertilized ovule?

How do you find work done, heat transferred and the change in internal energy for an isobaric process?

In a plant tallness is dominant over dwarfness and red flower is dominant over white.Starting with the parents work out a dihybrid cross.What is standard dihybrid ratio? Do you think the values would deviate if the two genes in question are interacting with each other?