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• The thickness of a doubly refracting plate, capable of producing a path difference l/4 between

The thickness of a doubly refracting plate, capable of producing a path difference l/4 between extraordinary and ordinary waves, is …

Anurag Mishra Professor Asked on 28th May 2016 in
• 325 views
• 0 answers
• 0 votes
• The pole of the plane x-y+5z=0 w.r.t the sphere x²+y²+z²=9 is

(a) (2, 3, 15) (b) (3, -3, 15) (c) (3, -3, 5) (d) (3, 3, 2)

Anurag Mishra Professor Asked on 28th May 2016 in
• 720 views
• 0 answers
• 0 votes
• The length of the tangent line from the point (3,1, -1) to the sphere x²+y²+z²-3x+5y+7=0 is

(a) √14 (b) √7 (c) √3 (d) √15

Anurag Mishra Professor Asked on 28th May 2016 in
• 714 views
• 0 answers
• 0 votes
• The radius of the circle x²+y²+z²+x+y+z=4, x+y+z=0 is

(a) 1 (b) 2 (c) 4 (d) 3/2

Anurag Mishra Professor Asked on 28th May 2016 in
• 735 views
• 0 answers
• 0 votes
• In the Fresnel diffraction, the source of light and screen are at a finite

(i) In the Fresnel diffraction, the source of light and screen are at a finite distance from the diffracting aperture …

Anurag Mishra Professor Asked on 28th May 2016 in
• 414 views
• 1 answers
• 0 votes
• If a plane transmission grating has 40000 lines then its resolving power in the second order is (λ=6000A):

(a) 80000 (b) 24000 (c) 20000 (d) 12000

Anurag Mishra Professor Asked on 28th May 2016 in
• 675 views
• 0 answers
• 0 votes
• Two major differences between biprism and Lloyd’s mirror fringes are:

(i) in the biprism fringe pattern the central fringe is bright while Lloy’s mirror is dark (ii) the conditions for …

Anurag Mishra Professor Asked on 28th May 2016 in
• 613 views
• 0 answers
• 0 votes
• In the Young’s double slit experiment, if the separation between the slits is 0.5 mm

In the Young’s double slit experiment, if the separation between the slits is 0.5 mm the slit-screen separation is 50 …

Anurag Mishra Professor Asked on 28th May 2016 in
• 266 views
• 0 answers
• 0 votes
• The relation between path length difference and phase difference is:

(a) phase difference =2π/l (path length difference) (b) path length difference = 2π/l (path difference) (c) path length difference=2π/l (phase …

Anurag Mishra Professor Asked on 28th May 2016 in
• 235 views
• 0 answers
• 0 votes
• Which of the following phenomenon show light is a transverse wave:

(a) Reflection (b) interference (c) Diffraction (d) Polarization

Anurag Mishra Professor Asked on 28th May 2016 in
• 241 views
• 1 answers
• 0 votes
• The ultravioler catastrophe occurs in:

(a) Wien’s law (b) Rayleigh-Jean’s law (c) Planck’s radiation law (d) Stefan’s law

Anurag Mishra Professor Asked on 28th May 2016 in
• 306 views
• 0 answers
• 0 votes
• Active transport required energy in the form of:

(a) ATP (b) ADP (c) AMP (d) IMP

Anurag Mishra Professor Asked on 28th May 2016 in
• 257 views
• 1 answers
• 0 votes
• Clover leaf model of RNA is:

(a) m-RNA (b) t-RNA (c) r-RNA (d) c-RNA

Anurag Mishra Professor Asked on 28th May 2016 in
• 292 views
• 1 answers
• 0 votes
• An example for ketose sugar:

(a) Glucose (b) Ribose (c) Glucose (d) Fructose

Anurag Mishra Professor Asked on 28th May 2016 in
• 265 views
• 1 answers
• 0 votes
• The central dogma of molecular biology is:

(a) DNAà rRNAà Protein (b) rRNA à Protein à DNA (c) DNAà mRNAàProtein (d) ProteinàDNAàrRNA

Anurag Mishra Professor Asked on 28th May 2016 in
• 214 views
• 1 answers
• 0 votes
• In a monohybrid cross, the genotypic ratio is:

(a) 3:1 (b) 1:1:1:1 (c) 1:2:1 (d) 4:0

Anurag Mishra Professor Asked on 28th May 2016 in
• 192 views
• 1 answers
• 0 votes
• Cell cycle occurs the following way:

(a) G1 Phase à S Phase à G2 Phase à M Phase (b) S Phase à G1 Phase à G2 …

Anurag Mishra Professor Asked on 28th May 2016 in
• 224 views
• 1 answers
• 0 votes
• The first heart sound ‘Lub’ is due to:

(a) Auricular diastole (b) Auricular systole (c) Ventricular diastole (d) ventricular systole

Anurag Mishra Professor Asked on 28th May 2016 in
• 206 views
• 1 answers
• 0 votes
• In lichens, the fungus depends on alga for:

(a) Minerals (b) Carbohydrates (c) Water (d) Protection

Anurag Mishra Professor Asked on 28th May 2016 in
• 213 views
• 1 answers
• 0 votes
• Thermoregulation is under the control of:

(a) Hypothalamus (b) Adrenal gland (c) Thyroid gland (d) Thymus gland

Anurag Mishra Professor Asked on 28th May 2016 in
• 194 views
• 1 answers
• 0 votes