Tell me how we are getting light from electrical bulb?

887

---

Draw a graph between frequency of photon and velocity of photo electron?

898

---

What are the ten satellite launched from india and year of launch?

990

---

explain the proper definition of light?

994

---

What is reflection of light?

1064

---

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

1006

---

Explain the difference between optical zoom, digital zoom and smart zoom?

959

---

Explain what is the translucent?

987

---

Explain the difference between photodiode & photocell?

992

---

Explain why are metals able to conduct current so well?

877

---

Explain what is the homogenous?

999

---

Tell me what type(amount) of capacitors are used in fan?

907

---

Tell me why is n-type conductor is neutral?

875

---

Explain real image?

1068

---

What is the effect of using two converging lenses in one optical instrument?

932

---