Tell me how we are getting light from electrical bulb?

832

---

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

842

---

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

934

---

explain the proper definition of light?

930

---

What is reflection of light?

968

---

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

926

---

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

904

---

Explain what is the translucent?

929

---

Explain the difference between photodiode & photocell?

935

---

Explain why are metals able to conduct current so well?

826

---

Explain what is the homogenous?

948

---

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

851

---

Tell me why is n-type conductor is neutral?

817

---

Explain real image?

967

---

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

882

---