Description : Assertion When a charged particle moves perpendicular to a uniform magnetic field then its momentum remains constant. Reason Magnetic force acts perpe
Last Answer : Assertion When a charged particle moves perpendicular to a uniform magnetic field then its momentum ... Assertion is false but Reason is true.
Description : Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 atm and `373K` is zero. Reason: For all isothermal
Last Answer : Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 ... . D. If both Assertion & Reason are false.
Description : Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = E + PV, and value of internal energy can not be de
Last Answer : Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = ... . D. If both Assertion & Reason are false.
Description : Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of ... of A. (c) A is true but R is false. (d) A is false but R is true.
Last Answer : (a) Both A and R are true and R is the correct explanation of A.
Description : Assertion: (A) Diethyl ether is used as general anaesthesia Reason (R): Diethyl either produces unconsciousness without effecting lungs
Last Answer : Assertion: (A) Diethyl ether is used as general anaesthesia Reason (R): Diethyl either produces unconsciousness ... false D. A is false but R is true
Description : Assertion (A) : Cancer cells are virtually immortal until the body in which they reside dies. Reason`(R)`: Cancer is caused by damage to genes regulat
Last Answer : Assertion (A) : Cancer cells are virtually immortal until the body in which they reside dies. Reason ... D. If both the assertion and reason are false
Description : Assertion(A): Physical adsorption of molecules on the surface requires activation energy. Reason(R): Because the bonds of adsorbed molecules are broke
Last Answer : Assertion(A): Physical adsorption of molecules on the surface requires activation energy. Reason(R): ... D. If both Assertion & Reason are False.
Description : Assertion : All diploic bones of body are haemopoietic. Reason : Red bone marrow is present in the diploic bone.
Last Answer : Assertion : All diploic bones of body are haemopoietic. Reason : Red bone marrow is present in the ... . D. If both Assertion & Reason are false.
Description : Assertion : Reptiles can be termed as first true and animals Reason : These are completely independent of water due to the development of internal fer
Last Answer : Assertion : Reptiles can be termed as first true and animals Reason : These are completely independent ... D. If both Assertion and Reason are false.
Description : Assertion `:-` Small intestine is very long and has plica circularis & villi Reason `:` All these increase internal surface area of small intestine fo
Last Answer : Assertion `:-` Small intestine is very long and has plica circularis & villi Reason `:` All these ... False. D. If both Assertion & Reason are false.
Description : Assertion :- Homologous organs suggest same origin. Reason :- Organs which are simillar in function and dissimilar in internal morphology called as Ho
Last Answer : Assertion :- Homologous organs suggest same origin. Reason :- Organs which are simillar in function and ... D. If both Assertion & Reason are false.
Description : Assertion: Some orgainsms can maintain internal homeostasis by means of physiological processes and are called "regulates." Reason: Regulates can main
Last Answer : Assertion: Some orgainsms can maintain internal homeostasis by means of physiological processes and are called " ... Reason are false, then mark (4).
Description : Which of the following statement is incorrect? a.A body can have energy without having momentum b.A body cannot have kinetic energy without having momentum c.A body in motion will always have kinetic energy more than the potential energy d.None of the above e.107 dynes
Last Answer : c. A body in motion will always have kinetic energy more than the potential energy
Description : The angular momentum L = r x p, where r is a position vector and P is linear momentum of a body.
Last Answer : The angular momentum L = r x p, where r is a position vector and P is linear momentum of a body. If r = 4i x 6j - 3k and p = 2i x 4j - 5k, find L.
Description : Assertion : A bony fish can stay at a particular depth without expending energy is a swimming contrary to the cartilaginous fishes. Reason : In bony f
Last Answer : Assertion : A bony fish can stay at a particular depth without expending energy is a swimming contrary ... D. If both Assertion and Reason are false.
Description : Assertion (A) Sound waves are not electromagnetic waves. Reason (R) Sound waves cannot propagate in vacuum.
Last Answer : Ans:(a)
Description : Assertion (A) Gravity and gravitation are one and the same thing. Reason (R) Both represent force of attraction.
Last Answer : Ans:(e)
Description : Assertion : Rainbow is an example of the dispersion of sunlight by the water droplets. Reason: light of shorter wavelength is scattered much more than light of longer wavelength (a) Both A and R are true and R is the correct ... of A.(c) A is true but R is false. (d) A is false but R is true.
Last Answer : (c) A is true but R is false.
Description : Assertion (A) `:` Amphibians have evolved from fishes . Reason (R ) `:` Archaeopteryx is a fossil linking fishes and amphibians `:`
Last Answer : Assertion (A) `:` Amphibians have evolved from fishes . Reason (R ) `:` Archaeopteryx is a ... false D. If both Assertion and Reason are false.
Description : Assertion (A): Organ transplantation patients are given immunosuppressive durgs. Reason (R): Transplanted tissue has antigens which stimulate the spec
Last Answer : Assertion (A): Organ transplantation patients are given immunosuppressive durgs. Reason (R): ... If both the assertion and reason are false
Description : Assertion (A): A person who has received a cut and is bleeding needs to be given antitetanus treatment. Reason(R): Antitetanus injection provides immu
Last Answer : Assertion (A): A person who has received a cut and is bleeding needs to be given antitetanus ... D. If both the assertion and reason are false
Description : Assertion (A) : Dope test is used to estimate the lavel of blood alcohol by analyzing the breath of persons drinking alcohol. Reason (R) : A drunken p
Last Answer : Assertion (A) : Dope test is used to estimate the lavel of blood alcohol by analyzing the breath of ... D. If both the assertion and reason are false
Description : Assertion (A) : Severe Acute Respiratory Syndrome (SARS) originated in China. Reason `(R)`: China is the most populated country of the world.
Last Answer : Assertion (A) : Severe Acute Respiratory Syndrome (SARS) originated in China. Reason `(R)`: China ... D. If both the assertion and reason are false
Description : Assertion (A): Many visitors to the hills suffer from skin and respiratory allergy problems. Reason (R): Conifer trees produce a large quantity of win
Last Answer : Assertion (A): Many visitors to the hills suffer from skin and respiratory allergy problems. Reason ( ... . If both the assertion and reason are false
Description : Assertion (A) : Tropical rain forests are disappearing fast from developing countries such as India. Reason ( R ) : No value is attached to these fore
Last Answer : Assertion (A) : Tropical rain forests are disappearing fast from developing countries such as India. ... D. If both assertion and reason are false.
Description : Assertion `:-` Pneumotaxic centre can moderate the functions of the respiratory rhythm centre. Reason `:-` Neural signal from pneumotoxic centre can r
Last Answer : Assertion `:-` Pneumotaxic centre can moderate the functions of the respiratory rhythm centre. Reason `:- ... D. If both Assertion & Reason are false.
Description : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t
Last Answer : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 ... true but reason is wrong D. Both are wrong
Description : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage to the stratospheric change. Reason (R): Ozone h
Last Answer : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage ... true but reason is wrong D. Both are wrong
Description : Assertion (A): Deforestation is one main factor contributing to global warming. Reason (R) : Besides `CO_(2)`, two other gases methane and CFCs are al
Last Answer : Assertion (A): Deforestation is one main factor contributing to global warming. Reason (R) : Besides ` ... true but reason is wrong D. Both are wrong
Description : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult
Last Answer : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of ... true but reason is wrong D. Both are wrong
Description : Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent. Reason (R) : Introduction of multi-point fu
Last Answer : Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent ... but reason is wrong D. Both are wrong
Description : Assertion (A) : Inhabitants close to very busy airports are likely to experience health hazards. Reason (R) : Sound level of jet aeroplanes usually ex
Last Answer : Assertion (A) : Inhabitants close to very busy airports are likely to experience health hazards. Reason ... but reason is wrong D. Both are wrong
Description : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends
Last Answer : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ... . D. If both assertion and reason are false.
Description : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. Reason (R ) `:` m-RNA is transferred fro
Last Answer : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the ... D. If both assertion and reason are false.
Description : Assertion (A): Pressure, volume, and temperature are all extensive properties. Reason (R ) : Extensive properties depend upon the amount and nature of
Last Answer : Assertion (A): Pressure, volume, and temperature are all extensive properties. Reason (R ) : Extensive ... . D. If both Assertion & Reason are false.
Description : Assertion (A): May endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature. Reason (R ) : Entropy of
Last Answer : Assertion (A): May endothermic reactions that are not spontaneous at room temperature become spontaneous ... . If both Assertion & Reason are false.
Description : Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of graphite is lower than that of diamond.
Last Answer : Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of ... False. D. If both Assertion & Reason are false.
Description : Assertion (A): There is no reaction known for which `DeltaG` is positive, yet it is spontaneous. Reason (R ) : For photochemical reaction, `DeltaG` is
Last Answer : Assertion (A): There is no reaction known for which `DeltaG` is positive, yet it is spontaneous. ... False. D. If both Assertion & Reason are false.
Description : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s
Last Answer : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration ` ... If both Assertion & Reason are False.
Description : Assertion (A) : Half life of a radioactive isotope is the time required to decrease its mass number by half Reason (R ) : Half life of radioactive iso
Last Answer : Assertion (A) : Half life of a radioactive isotope is the time required to decrease its mass number by half ... . If both (A) and (R ) are incorrect.
Description : Assertion `(A) : K-` shell electron capture is detected by analyzing the wavelength of `X-` ray emitted. Reason `(R):` The wavelength of the `X-` ray
Last Answer : Assertion `(A) : K-` shell electron capture is detected by analyzing the wavelength of `X-` ray emitted. ... D. If both (A) and (R ) are incorrect.
Description : Assertion `(A) : beta-` particles are deflected more than `alpha-` particles in a given electric field. Reason `(R) : `Charge on `alpha-` particles is
Last Answer : Assertion `(A) : beta-` particles are deflected more than `alpha-` particles in a given electric field. ... . If both (A) and (R ) are incorrect.
Description : Assertion `(A):` `._(92)U^(238) (IIIB)overset(-alpha)rarrAoverset(-alpha)rarrB overset(-beta)rarrC` Reason `(R):` Element `B` will be of `II A ` group
Last Answer : Assertion `(A):` `._(92)U^(238) (IIIB)overset(-alpha)rarrAoverset(-alpha)rarrB overset(-beta)rarrC` Reason ... D. If both (A) and (R ) are incorrect.
Description : Assertion `(A): ` The emission of `alpha-` particles results in the formation of isodiapher of parent element. Reason `(R) : ` Isodiaphers have same i
Last Answer : Assertion `(A): ` The emission of `alpha-` particles results in the formation of isodiapher of parent element ... If both (A) and (R ) are incorrect.
Description : Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays Reason (R ) : `beta`-particles are lighte
Last Answer : Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays ... . If both (A) and (R ) are incorrect.
Description : Assertion `(A) :` In radioactive disintegrations, `._(2)He^(4)` nuclei can come out of the nucleus but lighter `._(2)H^(3)` cannot. Reason `(R) :` The
Last Answer : Assertion `(A) :` In radioactive disintegrations, `._(2)He^(4)` nuclei can come out of the nucleus but ... D. If both (A) and (R ) are incorrect.
Description : Assertion `(A) :` Hydrogen bomb is more powerful than atomic bomb. Reason `(R) :` In hydrogen bomb, fusion reaction is initiated. a)If both `(A)` and
Last Answer : Assertion `(A) :` Hydrogen bomb is more powerful than atomic bomb. Reason `(R) :` In hydrogen bomb, fusion ... D. If both (A) and (R ) are incorrect.
Description : Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element disinegrates, more of it is formed in nat
Last Answer : Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element ... . If both (A) and (R ) are incorrect.