Introduction to Pressure MCQs (Multiple Choice Questions) PDF Download - 162

One lady is wearing high heels and other one is wearing flat shoes. Shoes going to get stuck in the mud are

1. The high heels
2. The flat shoes
3. Both of them
4. None of them

The transfer of heat energy is because of

1. good conductivity of a metal
2. bad conductivity of a metal
3. atomic or molecular vibration
4. neutronic activation

In an aquarium, air bubble at the bottom has a volume = 0.5 mm³. What would be the size of the bubble at the top if the height of the water level is = 1 m. (density of water = 1000 kg ⁄ m³, atmospheric pressure = 1 × 10⁵ Pa, gravitational acceleration = 10 m s^-1²)

1. 0.5 mm³
2. 0.55 mm³
3. 0.6 mm³
4. 0.65 mm³

In a science lab, a student uses 150g of water and heats it from 10 °C to 30 °C with the energy of 10000 J, the heat capacity of the water is

1. 250 J K^-1
2. −250 J K^-1
3. 500 J K^-1
4. −500 J K^-1

Speed of a microwave of wavelength 5 × 10^-3 m in a vacuum is 5 × 10⁸ m s^-1, its frequency is equal to

1. 1.5 × 10⁵ m s^-1
2. 6 × 10⁹ m s^-1
3. 1.5 × 10⁶ m s^-1
4. 6 × 10¹⁰ m s^-1