
The income of a bank primarily comes from the spread, which is the difference between:
1. The interest rate charged to borrowers (loans).
2. The interest rate paid to depositors (savings or fixed deposits).
This spread represents the bank’s earnings and is a crucial component of its profitability.
Other options are incorrect:
- (a): Does not consider interest, which is the key source of income.
- (c): Refers to rates but not the amounts, which is crucial for understanding income.
- (d): Confuses principal amounts rather than focusing on interest.
| Case No. | Lens | Focal Length | Object Distance |
|---|---|---|---|
| 1 | \(A\) | 50 cm | 25 cm |
| 2 | B | 20 cm | 60 cm |
| 3 | C | 15 cm | 30 cm |