What is the proper definition of light?

1044

---

What is the rectilinear propagation of light?

996

---

Graph between frequency of photon and velocity of photo electron?

882

---

What is the difference between collector & emitter of transistor, even though material used for both same?

874

---

Explain real and virtual image?

933

---

Why does a tilted gyroscope not fall?

941

---

What is the difference between free electron theory and band theory of solids?

934

---

How many femtometers are in a nanometer?

964

---

What is the cause of brownian motion?

996

---

Does gas have density?

889

---

What is the difference between dynamic strain aging and strain aging?

917

---

Why does sun appear flat during sunrise and sunset?

897

---

What is larger the force the earth exerts on you or the force you exert on the earth?

869

---

a bullet of mass m travelling at velocity v has a kinetic energy of ½mv2 when it strikes a ballistic pendulum of mass 1000 grams. The kinetic energy of the twomasses moving together just after the moment of impact is about a thousand times smaller than ½mv2. What has most of the bullets initial kinetic energy beenconverted to?

922

---

What is different between secondary electron image and back scattered electron image?

921

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