experimentally show the luminous intencity.

what is Parsec..how can it be exactly define..?

 are there any other symbol except for candela, for luminous intensity

&

explain luminous intensity?

During an experiment, Reena places a few raisins in a beaker containing pure water. After some time, she observes that the raisins have become swollen. She then places some of the swollen raisins in a beaker containing a highly concentrated salt solution. She observes the beaker for changes after an hour.What will be the changes in raisins and why ?

define length of a simple pendulum

 the wavelength of light is 589nm. What is its order of magntude in metre ?          

what is ambiguity?

express 5 parsec in light years

Draw Velocity time graph for a body moving with variable velocity but uniform acceleration.

write an expression for the time period of oscillation of a simple pendulum? state the factors on which it depends.

Define vernier constant

What are tensor Quantities ?

A bullet of mass 30 g and moving with a velocity x hits a wooden target with a force of 187.5 N. If
the bullet penetrates 80 cm, find the value of x.

can u explain how refregerator lowers the temperature

y cfc's r required

how to use a vernier callipers and screw gauge ............. i am a cbse guy ;-))