Q23.When a rubber ball is taken to a depth of _______ m in deep sea, its volume decreases by 0. 5% (The bulk modulus of rubber = 9. 8 × 108 N m−2 Density of sea water = 103 kg m−3 , g = 9. 8 m s−2 )
What This Question Tests
This problem combines the concept of bulk modulus, which relates pressure change to fractional volume change, with the calculation of hydrostatic pressure at a certain depth in a fluid.
Concepts Tested
Formulas Used
B = - (ΔP / (ΔV/V))
P = ρgh
📚 NCERT Sections This Tests
9.3 — A Tank Is Filled With Water To A Height Of 12.5 Cm. The Apparent
Physics Class 12 · Chapter 9
9.3 A tank is filled with water to a height of 12.5 cm. The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4 cm. What is the refractive index of water? If water is replaced by a liquid of refractive index 1.63 up to the same height, by what distance would the microscope have to be moved to focus on the needle again?
9.5 — A Small Bulb Is Placed At The Bottom Of A Tank Containing Water To A
Physics Class 12 · Chapter 9
9.5 A small bulb is placed at the bottom of a tank containing water to a depth of 80cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.)
2.1 — Two Charges 5 × 10–8 C And –3 × 10–8 C Are Located 16 Cm Apart. At
Physics Class 11 · Chapter 2
2.1 Two charges 5 × 10–8 C and –3 × 10–8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.
📋 Question Details
- Chapter
- Properties of Matter
- Topic
- Bulk modulus and pressure
- Year
- 2021
- Shift
- 31 Aug Shift 1
- Q Number
- Q23
- Type
- Numerical
- NCERT Ref
- Class 11 Physics Ch 10: Mechanical Properties of Fluids
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