. The refractive index of one type of glass is

Related questions

Explain the following

---

An electric motor works on the principle

---

State joules law of heating

---

Write Joules law of heating

---

Name some devices in which electric motors are used

---

What is symbol of battery

---

A rheostat is used in an electrical circuit

---

What is the symbol of a rheostat

---

Energy is released from fossil fuels when they are

---

The main constituent of bio gas is

---

State and explain Maxwell's right hand thumb rule

---

Name the factors on which the heat produced

---

An electric bulb is marked 100 W 230 V

---

Which of the following is not a type of pollution

---

What is an electric fuse State its purpose in the household electrical circuit

---

Mark the correct reason/s why nichrome is used for making

---

How is a voltmeter connected in the circuit to measure

---

Give the symbol of an electric fuse used in circuit diagrams

---

Longer line in the symbol for a cell represents its negative positive terminal

---

When coal burns in air then

---