Monthly savings and expenditure of A initially is Rs. 3840 and Rs. 5760, respectively. Monthly expenditure of A now = 0.65 × 5760 = Rs. 5184 Monthly savings of A now = 1.35 × 3840 = Rs. 3744 Monthly income of A now = 5184 + 3744 = Rs. 8928 Desired percentage decrease = [(9600 – 8928)/9600] × 100 = 7%
A sound with a single frequency is called a:
Total mechanical energy =
Which of the following is the ultimate source of energy?
When heated from 0° to 10°C volume of a given mass of water will -
Lamberts law is related to –
The term ‘Isoneph' indicates the lines of equal –
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If t...
The electric and magnetic fields of an electromagnetic wave are _____________
In which type of motion does the velocity of a body vary with time?
What was invented by 'Zacharias Janssen'?