[{"id":156202,"question":"Electrostatics is the branch of physics which\r\ndeals with the study of electro charges:
","choices":[{"text":"At rest
","value":"A"},{"text":"At rest under the action of electric forces
","value":"B"},{"text":"In motion under the action of electric forces
","value":"C"},{"text":"In motion
","value":"D"},{"text":"At rest under the action of nuclear forces
","value":"E"}],"correctAnswer":2},{"id":156201,"question":"In case of two identical charges placed certain\r\ndistance apart, the electric field lines are:
","choices":[{"text":"Straight lines
","value":"A"},{"text":"Sine curves
","value":"B"},{"text":"Curved
","value":"C"},{"text":"Both (A) and (B)
","value":"D"},{"text":"None of these
","value":"E"}],"correctAnswer":3},{"id":156200,"question":"Field lines are closer to each other in the\r\nregion where the field is:","choices":[{"text":"Stronger
","value":"A"},{"text":"Weaker
","value":"B"},{"text":"Much weaker
","value":"C"},{"text":"Absent
","value":"D"},{"text":"None of these
","value":"E"}],"correctAnswer":1},{"id":156199,"question":"Electric field lines emerge from the charge in:","choices":[{"text":"One dimension
","value":"A"},{"text":"Two dimensions
","value":"B"},{"text":"Three\r\ndimensions
","value":"C"},{"text":"Four dimensions
","value":"D"},{"text":"None of them
","value":"E"}],"correctAnswer":3},{"id":156196,"question":"The value of relative permittivity of different dielectrics are:","choices":[{"text":"Equal
","value":"A"},{"text":"Different
","value":"B"},{"text":"Greater than one
","value":"C"},{"text":"Smaller than one
","value":"D"},{"text":"Both\r\n(B) and (C)
","value":"E"}],"correctAnswer":5},{"id":155883,"question":"The value of E0in coulomb's law is:","choices":[{"text":"9 x 109Nm2C-2","value":"A"},{"text":"8.85 x 10-12C2N-1m-2","value":"B"},{"text":"8.85 x 10-12Nm2C-2","value":"C"},{"text":"9 x 109C2N-1m-2","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155882,"question":"If the distance between two charges is doubled, the force between them will become:","choices":[{"text":"Double","value":"A"},{"text":"Half","value":"B"},{"text":"Three times","value":"C"},{"text":"One fourth","value":"D"},{"text":"One third","value":"E"}],"correctAnswer":4},{"id":155881,"question":"Average KE of a gas molecule has:","choices":[{"text":"Direct relation with absolute temperature and inverse relation with pressure","value":"A"},{"text":"Direction relation with both absolute temperature and pressure","value":"B"},{"text":"Inverse relation with both absolute temperature and pressure","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155880,"question":"Gas constant per molecule is called:","choices":[{"text":"Universal gas constant","value":"A"},{"text":"Stefen's constant","value":"B"},{"text":"Boltzmann constant","value":"C"},{"text":"Gravitation constant","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155879,"question":"Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:","choices":[{"text":"N = nNAm = MNA","value":"A"},{"text":"n = N NA, M = mNA","value":"B"},{"text":"M = NA/N , NA= m/n","value":"C"},{"text":"N = nNA, M = mNA","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":155878,"question":"In the formula P = N0KT, N0denotes:","choices":[{"text":"Number of molecules per unit per volume","value":"A"},{"text":"Number of moles","value":"B"},{"text":"Number of molecules","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155877,"question":"The volume of universal gas constant R is:","choices":[{"text":"8.314 J/K mole K","value":"A"},{"text":"8314 J/K mole K","value":"B"},{"text":"8.314 J/mole K","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155876,"question":"If the formula PV = nRT, n denotes:","choices":[{"text":"Number of molecules per unit volume","value":"A"},{"text":"Number of moles","value":"B"},{"text":"Number of molecules","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155875,"question":"While deriving equation of pressure by kinetic theory of gases, we take into account:","choices":[{"text":"Only linear motion of molecules","value":"A"},{"text":"Only rotational motion","value":"B"},{"text":"Only vibratory motion","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155874,"question":"Pressure applied at any point of gas at rest is transmitted equally to all parts of the gas. This is the statement of:","choices":[{"text":"Newton's second law","value":"A"},{"text":"Pascal's law","value":"B"},{"text":"Carnot theorem","value":"C"},{"text":"Second law of thermodynamics","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155873,"question":"If denotes the total number of molecules in cubic vessel such that m is mass of each milecule and I is length of each side of vessel, then mN/I3gives the:","choices":[{"text":"Force","value":"A"},{"text":"Density","value":"B"},{"text":"Work done","value":"C"},{"text":"Pressure","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155872,"question":"The rate of change of momentum of a molecule is equal to:","choices":[{"text":"Pressure","value":"A"},{"text":"Work","value":"B"},{"text":"Density","value":"C"},{"text":"Force","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":155871,"question":"If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:","choices":[{"text":"-2 mv","value":"A"},{"text":"Zero","value":"B"},{"text":"2 mv","value":"C"},{"text":"mv","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155870,"question":"Pressure may be define as _______ per second per unit area:","choices":[{"text":"Change in force","value":"A"},{"text":"Change in momentum","value":"B"},{"text":"Change in energy","value":"C"},{"text":"Work done","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155869,"question":"Truth of kinetic energy is confirmed by:","choices":[{"text":"Diffusion of gases","value":"A"},{"text":"Brownian motion","value":"B"},{"text":"Both A and B","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155868,"question":"Electromagnetic waves emitted by hot bodies are called:","choices":[{"text":"Photoelectrons","value":"A"},{"text":"Alpha rays","value":"B"},{"text":"Thermal radiation","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155867,"question":"The nature of thermal radiation is similar to:","choices":[{"text":"Ultraviolet rays","value":"A"},{"text":"Light rays","value":"B"},{"text":"Both of them","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155866,"question":"The relationship between Boltzmann constant k with R and NAis given as:","choices":[{"text":"k = RNA","value":"A"},{"text":"k =R/NA","value":"B"},{"text":"k = NR/NA","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155865,"question":"At constant temperature, if the density of the gas is increased, its pressure will:","choices":[{"text":"One kg of a substance","value":"A"},{"text":"Unit volume of a substance","value":"B"},{"text":"One mole of a substance","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155864,"question":"The motion of molecules in gases is:","choices":[{"text":"Orderly","value":"A"},{"text":"Random","value":"B"},{"text":"Circular","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155863,"question":"In an ideal gas, the molecules have:","choices":[{"text":"Kinetic energy only","value":"A"},{"text":"Potential energy only","value":"B"},{"text":"Both KE and PE","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155862,"question":"Which of the following does not have the same units:","choices":[{"text":"Work","value":"A"},{"text":"Heat","value":"B"},{"text":"Kinetic energy","value":"C"},{"text":"Power","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":155861,"question":"The temperature scale approved in SI units is:","choices":[{"text":"Celsius scale","value":"A"},{"text":"Kelvin scale","value":"B"},{"text":"Fehrenheit scale","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155466,"question":"In the theory of dimensional analysis, heat may be properly represented by:","choices":[{"text":"ML2T-2","value":"A"},{"text":"MT-2","value":"B"},{"text":"ML-1T-1","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155463,"question":"The only significant motion possessed by the mono-atomic gas represented is:","choices":[{"text":"Translatory","value":"A"},{"text":"Rotatory","value":"B"},{"text":"Vibratory","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1}]