Angular momentum of a body is defined as the product of
1. Mass and angular velocity
2. Centripetal force and radius
3. Linear velocity and angular velocity
4. Moment of inertia and angular velocity
List-I | List-II |
(a) H/s | (i) s2 |
(b) H×A | (ii) Wb |
(c) H×F | (iii) s |
(d) \(\Omega\)×F | (iv) \(\Omega\) |
1. | (a) – (ii), (b) – (iv), (c) – (i), (d) – (iii) |
2. | (a) – (iv), (b) – (ii), (c) – (i), (d) – (iii) |
3. | (a) – (iv), (b) – (ii), (c) – (iii), (d) – (i) |
4. | (a) – (ii), (b) – (iii), (c) – (iv), (d) – (i) |
(i) | the direct isothermal path \(AB.\) |
(ii) | the path \(ACB,\) where \(AC\) is isochoric and \(CB\) is isobaric. |
1. | 2. | ||
3. | 4. |
(A) | mass of a molecule |
(B) | number of atoms in a molecule |
(C) | temperature, \(T\) |
A stone is thrown vertically downwards with an initial velocity of \(40\) m/s from the top of a building. If it reaches the ground with a velocity of \(60\) m/s, then the height of the building is: (Take \(g=10\) m/s2)
1. | \(120\) m | 2. | \(140\) m |
3. | \(80\) m | 4. | \(100\) m |
1. | increases by a factor of \(16\) |
2. | decreases by a factor of \(4\) |
3. | remains constant |
4. | increases by a factor of \(4\) |
The rate of flowing of water from the orifice in a wall of a tank will be more if the orifice is:
1. Near the bottom
2. Near the upper end
3. Exactly in the middle
4. Does not depend upon the position of the orifice
A second's pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket:
(1) Comes down with uniform acceleration
(2) Moves around the earth in a geostationary orbit
(3) Moves up with a uniform velocity
(4) Moves up with the uniform acceleration
The magnitude of the vector
\(\widehat i+\widehat i\times\widehat j+(\widehat i\times\widehat j)\times\widehat i+((\widehat i\times\widehat j)\times\widehat i)\times\widehat j\):
1. \(1\)
2. \(\sqrt2\)
3. \(\sqrt3\)
4. \(2\)
The angular velocity of rotation of star (of mass M and radius R) at which the matter start to escape from its equator will be
(1)
(2)
(3)
(4)
1. | \(25\) W | 2. | \(50\) W |
3. | \(100\) W | 4. | \(150\) W |
1. | \(2.4\) km/h | 2. | \(4.8\) km/h |
3. | \(2.4\sqrt2\) km/h | 4. | \(\frac{2.4}{\sqrt2}\) km/h |
1. | \(0\) unit | 2. | \(2\) unit |
3. | \(4\) unit | 4. | \(3\) unit |
\(6.02\times10^{20}\) molecules of urea are present in 100 mL of its solution. The concentration of urea solution is:
(Avogadro constant, \(N_A=6.02\times10^{23}~mol^{-1}\))
1. 0.001 M
2. 0.01 M
3. 0.02 M
4. 0.1 M
An evacuated glass vessel weighs when empty, when filled with a liquid of density and 50.5 g when filled with an ideal gas at at . Determine the molar mass of the gas.
1.
2.
3.
4.
Which of the following is the incorrect statement?
1. PH5 and BiCl5 do not exist
2. pπ - dπ bonds are present in SO2
3. SeF4 and CH4 have the same shape
4. \(\mathrm{I_{3}^{+}}\)
The most abundant isotope of hydrogen is-
1. Tritium
2. Deuterium
3. Protium
4. Para-hydrogen
Which of the following oxide is amphoteric in nature?
1. SnO2
2. SiO2
3. GeO2
4. CO2
The compound is:
1. | 2. | ||
3. | 4. |
In which of the following solvents will AgBr have the highest solubility
1. 10 M NaBr
2. 10 M NH4OH
3. Pure water
4. 10 M HBr
In an electrochemical cell, the half-cell reactions with their respective oxidation potentials are:
\(\begin{aligned} &C u(s) \rightarrow C u^{2+}+2 e^{-} ; E^{\circ}=-0.34 V \\ &N i s(s) \rightarrow N i^{2+}+2 e^{-} ; E^{\circ}=+0.25 V \end{aligned} \)
The reaction, among the following, that will be spontaneous is:
1. 2Ni(s) + Cu2+(aq) → Ni2+(aq) + 2Cu(s)
2. Ni2+(aq) + Cu(s) → Ni(s) + Cu2+(aq)
3. 2Cu(s) + Ni2+(aq) → 3Cu+(aq) + Ni(s)
4. Ni(s) + Cu2+(aq) → Ni2+(aq) + Cu(s)
. Where X and Y are
1. Positional isomers
2. Functional isomers
3. Metamers
4. Tautomers
The correct sequence of increasing the basic nature of the following oxides is:
1.
2.
3.
4.
The ozone layer of the upper atmosphere is being destroyed by :
1. Sulphur dioxide
2. Carbon dioxide
3. Chlorofluorocarbon
4. Smog
The number of electrons that can be present in the subshells having ms value of \(-\frac{1}{2}\) for n = 4 are:
1. 36
2. 4
3. 16
4. 2
1. | \(2 \mathrm{NO}(g)+\mathrm{O}_2(g) \rightarrow 2 \mathrm{NO}_2(g) \) |
2. | \(2 \mathrm{HCl}(a q)+\mathrm{Mg}(s) \rightarrow \mathrm{MgCl}_2(a q)+\mathrm{H}_2(g) \) |
3. | \(2 \mathrm{H}_2 \mathrm{O}(g)+\mathrm{Br}_2(g)+\mathrm{SO}_2(g) \rightarrow 2 \mathrm{HBr}(g)+\mathrm{H}_2 \mathrm{SO}_4(a q) \) |
4. | \(2 \mathrm{I}^{-}(a q)+\mathrm{Cl}_2(g) \rightarrow \mathrm{I}_2(s)+2 \mathrm{Cl}^{-}(a q)\) |
Assertion (A): | An atomic orbital is monocentric, whereas a molecular orbital is polycentric. |
Reason (R): | An electron in an atomic orbital is influenced by one nucleus whereas in a molecular orbital, it is influenced by two or more nuclei depending upon the number of atoms in a molecule. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Element which has the lowest ionisation potential among the following is:
1. C
2. Si
3. Sn
4. Pb
Which is not correct curve for gay-lusacc's law?
1 .
2.
3.
4.
Some amino acids are coded by more than one codon. Hence genetic code is:
1. | Unambiguous | 2. | Non-specific |
3. | Degenerate | 4. | Universal |
1. | Two molecules of PGA |
2. | One molecule of G3P and one molecule of DHAP |
3. | One molecule of phosphoglycerate and one molecule of phosphoglycolate |
4. | Two molecules of pyruvate |
Cellular respiration is very important for life as it:
1. Utilizes stored glucose
2. Exchanges gases with the environment
3. Synthesizes the energy currency, ATP
4. Helps the body get rid of fats
Ecological pyramids
1. Include provision for seasonal and diurnal variations
2. Do not include decomposers and transducers
3. Have no remedy for multi-level organisms
4. Are based on food webs
Methanogens do not produce:
1. | oxygen | 2. | methane |
3. | hydrogen sulfide | 4. | carbon dioxide |
I: | Phenylketonuria is caused by mutation in a pleiotropic gene |
II: | Sickle cell anemia is inherited as an autosomal-recessive condition |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
Leghaemoglobin is produced in response to
1. respiration
2. photosynthesis
3. fatty acid synthesis
4. N2 fixation.
Assertion (A): | Inbreeding increases the chances of offspring being affected by recessive traits. |
Reason (R): | Inbreeding increases the proportion of homozygous individuals in a population. |
1. | Both (A) and (R) are True and (R) correctly explains the (A). |
2. | Both (A) and (R) are True but (R) does not correctly explain the (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
The integrated waste water management in Arcata
(1) The conventional sedimentation, filtering and chlorine treatment were performed in first stage
(2) To remove dissolved heavy metal the biologist developed a series of 10 connected marshes
(3) Only bacteria were seeded here in marshland
(4) All of these
Assertion (A): | Of the 46 chromosomes in a normal diploid human cell, half are maternally derived and half are paternally derived. |
Reason (R): | Sexual reproduction involves the fusion of two haploid gametes to produce a zygote and a new organism, in which every cell has two sets of chromosomes. |
1. | Both (A) and (R) are True and (R) correctly explains the (A). |
2. | Both (A) and (R) are True but (R) does not correctly explain the (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Statement I : Bacterial structure and behaviour is
very complex
Statement 2 : They show the most extensive
metabolic diversity as a group
1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both statement 1 and statement 2 are correct.
4. Both statement 1 and statement 2 are incorrect.
Which of the following is not a source of medicine?
(1) Mulaithi
(2) Asparagus
(3) Ashwagandha
(4) Belladonna
In a dicotyledonous stem, the sequence of tissues from the outside to the inside is
(1) phellem – pericycle – endodermis – phloem
(2) phellem – phloem – endodermis – pericycle
(3) phellem – endodermis – pericycle – phloem
(4) pericycle – phellem – endodermis – phloem
The signals of fetal ejection reflex originate from:
1. Maternal pituitary
2. Maternal hypothalamus
3. Fully developed fetus and placenta
4. Fetal pituitary
The eyes of Octopus and eyes of cat show different patterns of structure, yet they
perform similar function. This is an example of
1. homologous organs that have evolved due to convergent evolution
2. homologous organs that have evolved due to divergent evolution
3. analogous organs that have evolved due to convergent evolution
4. analogous organs that have evolved due to divergent evolution
Biopiracy is
(1) The term used to refer to the use of bio-resources by multinational companies and other organisations without proper authorization from the countries and people concerned without compensatory payment.
(2) The term used to refer to the use of bio-resources by any person with proper authorization from the countries and people concerned without compensatory payment.
(3) The term used to refer to the use of bio- pesticides by multinational companies and other organisations with proper authorization from the countries and people concerned without compensatory payment.
(4) The term used to refer to the use of bio-resources by multinational companies and other organisations with proper authorization from the countries and people concerned without compensatory payment.
The two halves of pelvic girdles meet…..to form ….
(1) Ventrally, Pubic symphysis
(2) Dorsally , pelvic symphysis
(3) Laterally, pubic symphysis
(4) Superiorly, pubic symphysis
If a person A has undergone urine analysis. It will help in
(1) Clinical diagnosis of many metabolic disorders
(2) Diagnosis of kidney malfunctioning
(3) Diabetes mellitus
(4) All of these
Statement I: | When swallowing, the soft palate would have to move downward in order to prevent food from entering the lungs. |
Statement II: | When swallowing the epiglottis allows the food to enter the larynx. |
1. | they form hydrogen bonds with their complementary cut counterparts |
2. | they allow a host cell to retain a large number of copies of vector DNA |
3. | they act as selectable markers to isolate transformed cells |
4. | they form covalent phosphodiester bonds with their complementary cut counterparts |
Serum differs from blood plasma in:
1. lacking globulins
2. lacking albumins
3. lacking clotting factors
4. lacking antibodies
1. Twelve weeks
2. Eighteen weeks
3. Six weeks
4. Eight weeks
Bone forming cells are:
(1) Osteoclasts
(2) Osteoblasts
(3) Chondroblast
(4) Chondroclasts
Statement I: | A muscular wall called a septum prevents the mixture of blood between the left and right sides of the heart. |
Statement II: | The left ventricle has a thicker musculature when compared to the musculature of the right ventricle. |
Statement I: | A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (N-terminal). |
Statement II: | Adult human haemoglobin, consists of 4 subunits (two subunits of \(\alpha\) type and two subunits of ẞ type.) |
1. | Statement I is false but Statement II is true. |
2. | Both Statement I and Statement II are true. |
3. | Both Statement I and Statement II are false. |
4. | Statement I is true but Statement II is false. |
Sycon – Scypha; Spongilla - Fresh water sponge; Euspongia - Bath sponge; Physalia -Portuguese man-of-war; Adamsia - Sea anemone; Pennatula - Sea-fan |