Answer / guest

In fluorescence the light emitted by a fluorescent substance
ceases as soon as the light falling on it is cit off. In
phosphorescence the substance continues to emit light even
when the initial light is withdrawn.

what is newton first formula

3 Answers   RRB,

---

What does hull speed mean?

1 Answers  

---

Explain how many more times louder is 70 decibels than 10 decibels?

1 Answers  

---

When a water pump falls to draw water, a bucket of water poured into it sets it working. Why ?

3 Answers  

---

Dear sir, I appeared for the interview for the post of SCIENTIST/ENGINEER 'SC'in ISRO on 02/12/2009. when the resluts will be announced??

1 Answers   ISRO,

---

What is Absolute humidity ?

1 Answers  

---

Why ate screws preferred to nails in holding the two pieces of wood ?

1 Answers  

---

What is the velocity of wireless waves ?

1 Answers  

---

the hardest substance available on earth

2 Answers   Orbic,

---

Why is it difficult to stand on stilts ?

1 Answers  

---

what is specific fuel consumption,total fuel consumption,mean effective pressure,indicated thermal efficiency...

1 Answers  

---

What is Oxidation ?

1 Answers  

---