Tell me how we are getting light from electrical bulb?

885

---

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

895

---

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?

1005

---

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

958

---

Explain what is the translucent?

982

---

Explain the difference between photodiode & photocell?

990

---

Explain why are metals able to conduct current so well?

875

---

Explain what is the homogenous?

996

---

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?

1064

---

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

931

---