Cell phone towers should be placed far away from the residential area-why?

A bar magnet is moved along the axis of a copper ring placed far away from the magnet. Looking from the side of the magnet, an anticlockwise current is found to be induced in the ring. Which of the following may be true?

The axon transmits nerve impulses away from the cell body to

A biconvex thick lens is constructed with glass (mu = 1.50). Each of the surfaces has a radius of 10 cm and the thickness at the middle is 5 cm. Locate the image of an object placed far away from the lens.

Suppose a monochromatic X-ray beam of wavelength 100 pm is sent through a Young's double slit and the interference pattern is observed on a photographic plate placed 40 cm away from the slit. What should be the separation between the slits so that the successive maxima on the screen are separated by a distance of 0.1 mm?

A man goes 3 km towards north and then 4 km towards east. How far is he away from the initial poisition ?

Two slits are made 1 min apart and the screen is placed 1 m away from the slits. What is the firnge separation when blue green light of wavelength 500 nm is used?

Suppose that there are two cell phone towers within range of a cell phone. The two towers are located at 6km apart along a straight highway. Running east to west and the cell phone is north of the highway. The signal is 5km from the first tower and sqrt31 km from the second tower. Determine the position of the cell phone north and east of the first tower and how far it is from the highway.

When viewing through a compound microscope, our eyes should be positioned not on the eyepiece, but a short distance away from it for best viewing . why ? How much should be that short distance between the eye and eyepiece?

Dendrons are the longest fibres that conducts impulse away from the cell body.