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What is the difference between a lens and a mirror?
A mirror is a reflective surface. Light passes by the glass and hits the silver backing, reflecting off of it. (The angle of reflection equals the angle of incidence.)
A lens, on the other hand, does not reflect light; it refracts it. After entering the glass, light refracts in a different way depending on the shape of the lens and also makes a focal point where the refracting light comes to a point. This varies for different lenses -- convex or concave -- which is why there are dissimilar lenses for different types of eyeglasses.
Que: When light is vertically polarized what is it regarding the light that is vertical? Ans: It is the electric field somewhat than the magnetic field that gets most o
A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????
The mass of 1 mole of electrons is: (1) 9.1x 10 -28 g (2) 1.008mg (3) 0.55mg (4) 9.1x 10 -27 g Ans: (3)0.55mg
It is an instrument which can detect/calculate very small electric currents. It is also called as moving magnet galvanometer. It has of three circular coils of insulated copper wir
Roller Coaster G-Forces Roller coaster rides are infamous for forming accelerations and g-forces that are capable of transforming stomach contents within airborne projectiles.
PHYSICS ASSINGMENT ELECTRON MICROSCOPY COMPONENT. PLEASE ANSWER THESE QUESTIONS WITH DEATALING AND referencing if it needed. many thanks
summary requirement of cooling of transformers
Process to calculate teh number of atoms per unit cell The number of atoms per unit cell is equal to the product of 'the number of atoms per basis' and 'the number of basis per
Describe how Dewar flasks limit energy transfer A Dewar flask (thermos) is a device that resists energy transfer. Explain how Dewar flasks limit energy transfer by listing the
1. What is the principle of gas filled detectors? 2. What are nuclear radiations or particle detectors?
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