When I have one cubic foot of air enclosed within a weightless container and place it on the surface of a fresh water body of water at sea level how much mass (weight) will it support before it sinks below the surface?

1 Answers  

---

Does sunlight reflected off a mirror increase the temperature of the sun-rays?

0 Answers  

---

What is the velocity of light ?

5 Answers  

---

Explain about Scintillometer?

1 Answers  

---

Define Bulk modulus ?

1 Answers  

---

Explain the cause of brownian motion?

0 Answers  

---

What is the difference between photodiode & photocell.

1 Answers  

---

we know when two atom combine,the electrions are in valance band,but in case of semiconductor doner or acceptor level are above of v.. whyb

0 Answers  

---

Explain diffraction?

0 Answers  

---

Is it possible to convert a heat energy into magnetic energy?

2 Answers  

---

1.The main constitutuents of 'Bronze' are: 2.The element common to all acids: 3.The SI unit of resistance is:

1 Answers   RRB,

---

Explain about Barometer?

1 Answers  

---