Recent questions without a selected answer

by ayush dekate asked Aug 1, 2021 0 views

Pick the right difference between a DNA and RNA a) Sugar and phosphate b) sugar and purines c) purines and phosphate d) sugar and pyrimidines
Answer : c) purines and phosphate...

by ayush dekate asked Aug 1, 2021 2 views

What is not True for DNA in prokaryotes a) present in the form of a compact structure called nucleoid b) the coils are maintained by non-histone basic proteins c) found in cytoplasm in a supercoiled condition d) packaged as nucleosomes along with histones
Answer : b) the coils are maintained by non-histone basic proteins...

by ayush dekate asked Aug 1, 2021 0 views

If a DNA contains 1000 base pairs, what would be its length? a) 3400 Å b) 34000 Å c) 6800 d) 1000 Å
Answer : a) 3400 Å...

by ayush dekate asked Aug 1, 2021 0 views

If a double stranded DNA has 20% Thymine, the percentage of Guanine in the DNA a) 30% b) 10% c) 90% d) 40%
Answer : a) 30%...

by ayush dekate asked Aug 1, 2021 1 view

In a nucleotide, the nitrogen base is joined to the sugar molecule by a) Phosphodiester bond b) Glycosidic bond c) Hydrogen bond d) (a) &(b)
Answer : b) Glycosidic bond...

by ayush dekate asked Aug 1, 2021 0 views

Newton's rings are formed because of interference between the light Reflected from (a) Upper surface of Plano-convex lens and lower surface of plane glass plate (b) Lower surface of Plano-convex ... c) Lower and upper surface of Plano-convex (d) Lower and upper surfaces of plane glass plate
Answer : (b) Lower surface of Plano-convex lens and upper surface of plane glass plate...

by ayush dekate asked Aug 1, 2021 1 view

Why in Newton's rings setup, the beam splitter (mirror) is kept at 450? (a) It allows light rays to incident at 450over the top surface of Plano convex lens (b) It allows light rays to ... Plano convex lens (d) It allows light rays to incident at 900over the top surface of Plano convex lens
Answer : (d) It allows light rays to incident at 900over the top surface of Plano convex lens...

by ayush dekate asked Aug 1, 2021 0 views

In Newton’s rings experiment, if we reduce the radius of curvature of Plano Convex lens to zero, what will be effect on Newton’s rings? (a)They will become more bright (b)They will become more dark ( c)They will disappear (d) They will be more dense
Answer : ( c)They will disappear...

by ayush dekate asked Aug 1, 2021 1 view

Newton’s light illustrate the phenomenon of (a) Interference (b) Diffraction (c) Dispersion (d) Polarisation
Answer : (a) Interference...

by ayush dekate asked Aug 1, 2021 0 views

In case of thin film of non-uniform thickness, when illuminated with white light, the film appears colored. This is due to change of what factor? (a) Conditions for path difference at different points of ... of film (c) Thickness of film is different at different points of film (d) All of above
Answer : (d) All of above...

by ayush dekate asked Aug 1, 2021 0 views

Newton's rings experiment is performed and radius (or diameter) is calculated. Now Plano-convex lens is replaced with another Plano-convex lens of greater Radius of curvature. What will be effect on radius ( ... ) will increase (c) Radius (or diameter) will decrease (d) There will be no effect
Answer : (b) Radius (or diameter) will increase...

by ayush dekate asked Aug 1, 2021 0 views

Newton's rings experiment is performed with air gap between lens and plate. Now that gap is filled with water. What will be effect on radius (or diameter)? (a) Radius (or diameter) will remain ... or diameter) will increase (c) Radius (or diameter) will decrease (d) There will be no effect
Answer : (c) Radius (or diameter) will decrease...

by ayush dekate asked Aug 1, 2021 0 views

In Newton's rings experiment, if monochromatic source of light is replaced by another monochromatic source of higher wavelength. What will be the effect on radius (or diameter)? (a) Radius (or ... be no effect (d) Radius (or diameter) will remain constant but there will be more brightness
Answer : (b) Radius (or diameter) will increase...

by ayush dekate asked Aug 1, 2021 1 view

he Radius (or diameter) of bright rings in Newton's rings is (a) Directly proportional to the square root of odd numbers (b) Inversely proportional to the square root of natural numbers (c) ... to the square root of even numbers (d) Directly proportional to the square root of natural numbers
Answer : (a) Directly proportional to the square root of odd numbers...

by ayush dekate asked Aug 1, 2021 0 views

Interference pattern is observed in wedge-shaped film for monochromatic light. Now monochromatic light is replaced by white light. What will be the effect on interference pattern? (a) It will turn to dark (b) It will turn to bright (c) Bands will disappear (d) It will be a mixture of all colors
Answer : (d) It will be a mixture of all colors...

by ayush dekate asked Aug 1, 2021 0 views

Interference pattern is observed in wedge-shaped film and bandwidth is noted. Now the angle of wedge is reduced to zero. What will be the effect on Bandwidth? (a) Bandwidth increases (b) Bandwidth decreases (c) Bands will disappear (d) There will not any effect
Answer : (c) Bands will disappear...

by ayush dekate asked Aug 1, 2021 0 views

Interference pattern is observed in wedge-shaped film and bandwidth is noted. Now the angle of wedge is reduced. What will be the effect on bandwidth? (a) Bandwidth increases (b) Bandwidth decreases (c) Bands will disappear (d) There will not any effect
Answer : (a) Bandwidth increases...

by ayush dekate asked Aug 1, 2021 1 view

Interference pattern is observed in wedge-shaped film and bandwidth is noted. Now the thin film is replaced by the film of higher refractive index. What will be the effect on bandwidth? (a) Bandwidth increases (b) Bandwidth decreases (c) Bands will merge (d) There will not any effect
Answer : (b) Bandwidth decreases...

by ayush dekate asked Aug 1, 2021 0 views

What is the nature of interference pattern for thin film of wedge shaped (a) Concave outside (b) Convex outside (b) Equally spaced (d) Concave inside
Answer : (b) Convex outside...

by ayush dekate asked Aug 1, 2021 0 views

What is the nature of interference pattern at the contact edge of wedge shaped film (a) Always bright (b) Always dark (c) Bright or dark depending upon the thickness of other end (d) Bright or dark depending upon the wavelength of the light
Answer : (b) Always dark...