MATERIALS AND COMPONENTS

False

True

Ionic crystal, valence crystals and metals

Ionic and valence crystals

Ionic crystals

Ionic crystals, valence crystals, metal and vander wall crystals

2 and 3 only

1 and 2 only

1, 2 and 3

1 and 3 only

The number of electron-hole pairs generated per second due to thermal motion is always less than the number of electron-hole pairs lost per second due to recombination

The number of electrons-hole pairs generated per second due to thermal motion are equal to the number of electron-hole pairs lost per second due to recombination

Any of the above

The number of electron hole pairs generated per second due to thermal motion is always more than the number of electron-hole pairs lost per second due to recombination

Decreases with increase in light intensity

May increase or decrease with increase in light intensity

Remains constant

Increases with increase in light intensity