Physics-
General
Easy

Question

A candle of diameter d is floating on a liquid in a cylindrical container of diameter D (D>>d) as shown in figure. If it is burning at the rate of 2cm/hour then the top of the candle will

  1. Remain at the same height    
  2. Fall at the rate of 1 cm/hour    
  3. Fall at the rate of 2 cm/hour    
  4. Go up the rate of 1cm/hour    

The correct answer is: Fall at the rate of 1 cm/hour

Related Questions to study

General
Chemistry-

In Haber s process, (he ammonia is manufactured according to the following reaction:blank N subscript 2 end subscript left parenthesis g right parenthesis plus 3 H subscript 2 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon 2 N H subscript 3 end subscript left parenthesis g right parenthesis semicolon capital delta H to the power of 0 end exponent equals negative left parenthesis 22.4 k J right parenthesis The pressure inside the chamber is maintained at 200 atm and temperature at 500°C Generally, this reaction is carried out in presence of Fe catalyst The preparation of ammonia by Haber's process is an exothennic reaction. If the preparation follows the following temperature pressure relationship. for its % yield. Then for temperature T1, T2 and T3 the correct option is: 

In Haber s process, (he ammonia is manufactured according to the following reaction:blank N subscript 2 end subscript left parenthesis g right parenthesis plus 3 H subscript 2 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon 2 N H subscript 3 end subscript left parenthesis g right parenthesis semicolon capital delta H to the power of 0 end exponent equals negative left parenthesis 22.4 k J right parenthesis The pressure inside the chamber is maintained at 200 atm and temperature at 500°C Generally, this reaction is carried out in presence of Fe catalyst The preparation of ammonia by Haber's process is an exothennic reaction. If the preparation follows the following temperature pressure relationship. for its % yield. Then for temperature T1, T2 and T3 the correct option is: 

Chemistry-General
General
Chemistry-

Using above equations, Write down expression for K of the following reaction:N subscript 2 end subscript O subscript 4 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon N subscript 2 end subscript left parenthesis g right parenthesis plus fraction numerator 1 over denominator 2 end fraction O subscript 2 end subscript left parenthesis g right parenthesis

Using above equations, Write down expression for K of the following reaction:N subscript 2 end subscript O subscript 4 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon N subscript 2 end subscript left parenthesis g right parenthesis plus fraction numerator 1 over denominator 2 end fraction O subscript 2 end subscript left parenthesis g right parenthesis

Chemistry-General
General
Physics-

P-V diagram of an ideal gas is as shown in figure. Work done by the gas in process ABCD is

P-V diagram of an ideal gas is as shown in figure. Work done by the gas in process ABCD is

Physics-General
parallel
General
Physics-

An ideal monoatomic gas is taken round the cycle ABCDA shown in the PV diagram in the given fig. The work done during the cycle is

An ideal monoatomic gas is taken round the cycle ABCDA shown in the PV diagram in the given fig. The work done during the cycle is

Physics-General
General
Physics-

The P-V diagram of 2 gm of helium gas for a certain process A rightwards arrow B is shown in the figure. what is the heat given to the gas during the process A rightwards arrow B

The P-V diagram of 2 gm of helium gas for a certain process A rightwards arrow B is shown in the figure. what is the heat given to the gas during the process A rightwards arrow B

Physics-General
General
Physics-

In the following P-V diagram two adiabatic cut two isothermals at temperatures T1 and T2 (fig.). The value of fraction numerator V subscript a end subscript over denominator V subscript d end subscript end fraction will be

In the following P-V diagram two adiabatic cut two isothermals at temperatures T1 and T2 (fig.). The value of fraction numerator V subscript a end subscript over denominator V subscript d end subscript end fraction will be

Physics-General
parallel
General
Physics-

A sample of an ideal gas is taken through a cycle a shown in figure. It absorbs 50J of energy during the process AB, no heat during BC, rejects 70J during CA. 40J of work is done on the gas during BC. Internal energy of gas at A is 1500J, the internal energy at C would be

A sample of an ideal gas is taken through a cycle a shown in figure. It absorbs 50J of energy during the process AB, no heat during BC, rejects 70J during CA. 40J of work is done on the gas during BC. Internal energy of gas at A is 1500J, the internal energy at C would be

Physics-General
General
Physics-

P-V diagram of a cyclic process ABCA is as shown in figure. Choose the correct statement

P-V diagram of a cyclic process ABCA is as shown in figure. Choose the correct statement

Physics-General
General
Physics-

In the following figure, four curves A, B, C and D are shown. The curves are

In the following figure, four curves A, B, C and D are shown. The curves are

Physics-General
parallel
General
Physics-

Six moles of an ideal gas performs a cycle shown in figure. If the temperature are TA = 600 K, TB = 800 K, TC­ = 2200 K and TD = 1200 K, the work done per cycle is

Six moles of an ideal gas performs a cycle shown in figure. If the temperature are TA = 600 K, TB = 800 K, TC­ = 2200 K and TD = 1200 K, the work done per cycle is

Physics-General
General
Physics-

Consider a process shown in the figure. During this process the work done by the system

Consider a process shown in the figure. During this process the work done by the system

Physics-General
General
Physics-

The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done by the system in going from A rightwards arrow B rightwards arrow Cis 30J and 40J heat is given to the system. The change in internal energy between A and C is

The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done by the system in going from A rightwards arrow B rightwards arrow Cis 30J and 40J heat is given to the system. The change in internal energy between A and C is

Physics-General
parallel
General
Physics-

An ideal gas is taken from point A to the point B, as shown in the P-V diagram, keeping the temperature constant. The work done in the process is

An ideal gas is taken from point A to the point B, as shown in the P-V diagram, keeping the temperature constant. The work done in the process is

Physics-General
General
Physics-

An ideal gas is taken around ABCA as shown in the above P-V diagram. The work done during a cycle is

An ideal gas is taken around ABCA as shown in the above P-V diagram. The work done during a cycle is

Physics-General
General
Physics-

For one complete cycle of a thermodynamic process on a gas as shown in the P-V diagram, Which of following is correct

For one complete cycle of a thermodynamic process on a gas as shown in the P-V diagram, Which of following is correct

Physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.