2022Flame Institute

The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun

(a) 2 ( b) 3 (c) 4 (d) 5 Answer: c (6)

According to Kepler, the period of revolution of a planet (T) and its mean distance from the sun (r) are related by the equation (a) T3 r3 = constant (b) T2 r–3 = constant (c) Tr3 = constant …

107.

The mean distance between the atoms of iron is 3×10-10 m and interatomic force constant for iron is 7 N/m. The Young’s modulus of elasticity for iron is (a) 2.33×105 N/m2 (b) 23.3×1010 …

Spores of Funaria gives rise to

(a) Prothallus (b) Sporophyte (c) Protonema (d) Gametophyte Ans. c (8)

106. A uniform plank of Young’s modulus Y is moved over a smooth horizontal surface by a constant horizontal force F. The area of cross section of the plank is A. The compressive strain on the plank in the direction of the force is

(a) F/(AY) (b) (2F)/(AY) (c) 1/2{ F/(AY)} …

29. Which one of the following statements regarding artificial satellite of the earth is incorrect

(a) The orbital velocity depends on the mass of the satellite (b) A minimum velocity of 8 km/sec is required by a satellite to orbit quite close to the earth (c) The period of revolution is large if the radius …

Which of the following pigments is present in all algae

(a) Chlorophyll–a (b) Chlorophyll–b (c) Chlorophyll–c (d) Chlorophyll–d Ans. a (10)

Thallophytes are

(a) Always autotrophic (b) Always heterotrophic (c) Both (a) and (b) (d) None of the above Ans. c (8)

23.

The moment of inertia of a rod of length l about an axis passing through its centre of mass and perpendicular to rod is I. The moment of inertia of hexagonal shape formed by six such rods, about an axis …

Protonema is

(a) Fossil pteridophyte (b) A part of the sporophyte of Funaria (c) The juvenile phase of the moss gametophyte (d) None of the above Ans. c (12)

The orbital speed of Jupiter is

(a) Greater than the orbital speed of earth (b) Less than the orbital speed of earth (c) Equal to the orbital speed of earth (d) Zero Answer: b (15)

Which of the following is not a moss gametophyte

(a) Spore (b) Protonema (c) Columella (d) Paraphysis Ans. c (7)

The protonema of moss differs from green alga in having

(a) Buds (b) Colourless rhizoids (c) Oblique septa and discoid chloroplast (d) All of the above Ans. d (8)

Conducting tissue of moss is made up of

(a) Xylem and phloem (b) Parenchyma (c) Collenchyma (d) Xylem Ans. b (29)

In Funaria stomata occur

(a) In the epidermis of stem (b) In the capsule epidermis (c) In the leaf epidermis (d) All the above Ans. b (5)

Funaria may be differentiated from Pinus by the character

(a) No fruits are produced (b) No seeds are produced (c) Antheridia and archegonia are present (d) Presence of sporophyte Ans. b (46)

In mosses

(a) Gametophyte is independent of sporophyte (b) Sporophyte is partly dependent on gameto~phyte (c) Both (a) and (b) (d) None of the above Ans. c (5)

Funaria is a bryophyte because it

(a) Has no roots and stems (b) Has sporophyte attached to the gametophyte (c) Is vascular (d) All the above Ans. b (7)

105. A pan with set of weights is attached with a light spring. When disturbed, the mass-spring system oscillates with a time period of 0.6 s. When some additional weights are added then time period is 0.7s. The extension caused by the additional weights is approximately given by

(a) 1.38 cm (b) 3.5 cm (c) 1.75 cm (d) 2.45 cm Answer-b (36)

The capsule of Funaria is

(a) Symbiont (b) Semiparasite (c) Total parasite (d) Saprophyte Ans. b (8)

In Funaria leaves are arrange on stem

(a) Oppositely (b) Spirally (c) Opposite–decussate (d) None of the above Ans. b (10)

Kepler’s second law regarding constancy of aerial velocity of a planet is a consequence of the law of conservation of

(a) Energy (b) Angular momen (c) Linear momentum (d) None of these Answer: b (4)

Female sex organ in Funaria is called

(a) Paraphysis (b) Oospores (c) Archegonium (d) Artheridium Ans. c (7)

Which of the following is not associated with moss capsule

(a) Trabeculae (b) Peristome (c) Columella (d) Prostomium Ans. d (4)

Which of the following is a diploid

(a) Capsule of moss (b) Gametophyte, archegonia and egg of moss (c) Gametophyte, antheridia and sperm of moss (d) Gametophyte and spore of moss Ans. a (6)

Antheridium in Funaria is

(a) Pear shaped (b) Club shaped (c) Flask shaped (d) Spherical Ans.b (4)

The body of Funaria is

(a) Simple rosette thallus (b) Differentiated into root, central axis and leaves (c) Differentiated into rhizoids, stem and leaves (d) None of the above Ans. c (11)