May 2022
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May 23, 2022
(a) Homothallic                      (b) Heterothallic (c)  Heterotrophic                  (d) Heteromorphic Ans. a (12)
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May 23, 2022
(a) Brown algae                     (b) Sphagnum (c)  Ferns                                 (d) Cycads Ans. c (13)
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May 23, 2022
Two wires A and B are of same materials. Their lengths are in the ratio 1 : 2 and diameters...
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May 23, 2022
a. Ionic solids b. Molecular solids c. Amorphous solids d. Liquids Ans. a Explanation : Point defect arises because of...
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May 23, 2022
a. AgBr b. AgCl c. KBr d. ZnS Ans. c Explanation : KBr exhibits Schottky defect and not Frenkl defect....
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May 23, 2022
a. Metal excess defect b. Metal deficiency defect c. Displacement defect d. Impurity defect Ans. b Explanation : Metal deficiency...
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May 23, 2022
a. 2 b. 1 c. 3 d. 5 Ans. d (5)
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May 23, 2022
a. Disloction defect b. Schottky defect c. Frenkel defect d. Electronic defect Ans. d Explanation : When electron rich or...
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May 23, 2022
a. p-type semiconductor b. n-type semiconductor c. Intrinsic semiconductor d. Insulator Ans. b (25)
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May 23, 2022
a. Metallic conductor b. Insulator c. n- type semiconductor d. p-type semiconductor Ans. c Explanation : Excess of one valence...
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May 23, 2022
a. Frenkel defect b. Schottky defect c. Non-stoichiometric defect d. Simple intertitial defect Ans. a Explanation : Frankel defect is...
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May 23, 2022
(a)Â Presence of vascular system (b)Â Absence of flowers (c)Â Â Absence of fruits (d)Â All the above Ans. d (13)
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May 23, 2022
(a) (2Gm/r)1/2≤c        (b) (2Gm/r)1/2=c (c) (2Gm/r)1/2≥c               (d) (gm/r)1/2≥c Answer: c (7)
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May 23, 2022
(a)Â Multiplies very fast to produce massive biomass (b)Â Has association of nitrogen-fixing Rhizobium (c)Â Â Has association of nitrogenfixing cyanobacteria...
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May 23, 2022
(a) Bacteria                            (b) Gymnosperm (c)  Pteridophytes                  (d) Archaebacteria Ans. c (7)
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May 23, 2022
(a) Ginkgo                               (b) Selaginella (c)  Polypodium                       (d) Azolla Ans. a (10)
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May 23, 2022
Two satellite are revolving around the earth with velocities v1 and v2 and in radii r1 and r2 (r1 >...
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May 23, 2022
The area of cross section of a steel wire (Y=2.0×1011 N/m2) is 0.1 cm2 . The force required to double its...
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May 23, 2022
(a) Azolla                                (b) Salvinia (c)  Marsilia                             (d) Pteridium Ans. a (12)
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May 23, 2022
(a) Apospory                          (b) Apogamy (c)  Apomictic                         (d) Apomixis Ans. a (10)
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May 23, 2022
(a) Byophyte                          (b) Pteridophyte (c)  Gymnosperm                   (d) Angiosperm Ans. b (6)
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May 23, 2022
(a)Â Length of the wire (b)Â Radius of the wire (c)Â Â Material of the wire (d)Â Â Shape of the cross...
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May 23, 2022
(a) Azolla                                (b) Salvinia (c)  Pteris                                (d) Both (a) and (b) Ans. d (8)
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May 23, 2022
(a) Lycopodium                      (b) Lygodium (c)  Psilotum             (d)  Rhynia Ans....
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May 23, 2022
(a) Solenostele                       (b) Protostele (c)  Dictyostele                        (d) Siphonostele Ans. b (13)
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May 23, 2022
(a)Â Â Â Â Â Square of the distance of the milky way from the earth (b)Â Distance of milky way from the earth...
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May 23, 2022
(a) Psilophytales                    (b) Lycopods (c)  Horse-tail                          (d) Cycas Ans. a (16)
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May 23, 2022
(a)Â Gametophyte of fern (b)Â Sporophyte of angiosperm (c)Â Â Sporophyte of gymnosperm (d)Â Sporophyte of fern Ans. a (7)
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May 23, 2022
If orbital velocity of planet is given by v =Ga Mb Rc , then (a)Â Â a=1/3,b=1/3,c=-1/3 (b)Â a=1/2,b=1/2,c=-1/2 (c)Â a=1/2,b=-1/2,c=-1/2...
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May 23, 2022
(a) Gametophyte                   (b) Sporophyte (c)  Sporangium                     (d) Prothallus Ans. b (10)
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May 23, 2022
(a) Haploid                             (b) Diploid (c)  Triploid                             (d) Tetraploid Ans. a (7)
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May 23, 2022
(a) Homospory                       (b) Homothallism (c)  Heterospory                     (d) Apospory Ans. c (14)
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May 23, 2022
(a) Sporangiophore               (b) Sorus (c)  Sporangium                     (d) Strobilus or cone Ans. d (52)
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May 23, 2022
(a)Â Monoecious gametophytes (b)Â Dioecious gametophytes (c)Â Â Homothallic gametophytes (d)Â None of the above Ans. b (10)
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May 23, 2022
(a)Â Â 4Ï€2 R3 G-1T-2Â Â Â Â Â Â Â (b) 8Ï€2 R3 G-1T-2 (c)Â 12Ï€2 R3 G-1T-2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) 16Ï€2...
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May 23, 2022
(a)Â Algae (b)Â Fungi (c)Â Â Bryophytes (d)Â Pteridophytes Ans. d (7)
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May 23, 2022
(a) Haploid                             (b) Gametophytic (c)  Diploid                              (d) Triploid Ans. c (11)
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May 23, 2022
(a)Â Â Â Â Â 2.507Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (b)Â 1.033 (c)Â Â ...
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May 23, 2022
(a) Heterospory                     (b) Seed bearing (c)  Homospory                       (d) Tracheids and vessels Ans. c (8)
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May 23, 2022
(a)Â Sporophyte is parasitic over gametophyte (b)Â Gametophyte is parasitic over sporophyte (c)Â Â Sporophyte is independent of gametophyte (d)Â Sporophyte...