Holography is a technique of (1) recording a permanent, sharp two diimensional black and white or multicolour photograph (2) recording a permanent three dimensional multicolour photograph (3) recording a permanent three dimensional black and white photograph (4) recording a permanent three dimensional photograph of a given single colour or a multicolour

Holography is a technique of (1) recording a permanent, sharp two diimensional black and white or multicolour photograph (2) recording a permanent three dimensional multicolour photograph (3) recording a permanent three dimensional black and white photograph (4) recording a permanent three dimensional photograph of a given single colour or a multicolour
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recording a permanent three dimensional photograph of a given single colour or a multicolour
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Three dimensional image formed by laser is called _____. A. Photograph B. Hologram C. Two dimensional sketch D. Photocopy

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Last Answer : It seems OK to me.

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The dimensional formula ML⁻¹T⁻² corresponds to – (1) Modulus of elasticity (2) Viscosity (3) Moment of a force (4) Thrust

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The dimensional formula ML–1T –2 corresponds to (1) Modulus of elasticity (2) Viscosity (3) Moment of a force (4) Thrust

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Which combination of colour is the most convenient during day and night time? (1) Organe and blue (2) While and black (3) Yellow and blue (4) Red and green

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A colour-blind person cannot – (1) See distant objects (2) See black colour (3) Distinguish between certain colours (4) Have persistence of vision

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A colour-blind person cannot (1) see distant objects (2) see black colour (3) distinguish between certain colours (4) have persistence of vision

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Why is it easier to pierce paper with a sharp alpin instead of a blunt alpin ?

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Why is it easy to pierce paper with a sharp alpin ? Explain ?

Description : Why is it easy to pierce paper with a sharp alpin ? Explain ?

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To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor – (1) should be made of a good conductor but can be of any shape (2) should be in the form of a vertical rod (3) can be of any shape (4) should be made of a good conductor like copper with sharp-pointed edges

Description : To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor - (1) should be made of a good conductor but can be of any shape (2) should be in the form ... can be of any shape (4) should be made of a good conductor like copper with sharp-pointed edges

Last Answer : (4) should be made of a good conductor like copper with sharppointed edges Explanation: A lightning conductor is made up of a sharp pointed metal (usually copper metal, as it is a very good ... cloud, it will first strike the pointed tip of the lightning conductor and quickly travel to the earth.

A piano tuner notices a standing Lissajous (pron: Liss-a-jew) curve on his oscilloscope. The tone being projected is: w) out of harmony x) sharp y) resonating z) flat

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Last Answer : ANSWER: Y -- RESONATING

Light bends around sharp corners as a result of w) refraction x) reflection y) diffraction z) dispersion

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To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor (1) should be made of a good conductor but can be of any shape (2) should be in the form of a vertical rod (3) can be of any shape (4) should be made of a good conductor like copper with sharp-pointed edges

Description : To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor (1) should be made of a good conductor but can be of any shape (2) should be in the form of ... can be of any shape (4) should be made of a good conductor like copper with sharp-pointed edges

Last Answer : should be made of a good conductor like copper with sharp-pointed edges

In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Description : In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Last Answer : (4) White hole Explanation: A White Hole is a hypothetical hole in outer space from which energy, stars, and other celestial matter emerge or explode. It is a theoretical celestial object into which matter is funneled from a black hole.

In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Description : In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? (1) Black hole (2) Ozone hole (3) Asteroid belt (4) White hole

Last Answer : White hole

Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that (A) There is no internal heat generation (B) Boundary surfaces are isothermal (C) Material is anisotropic (D) Constant temperature gradient exists

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Last Answer : (C) Material is anisotropic

For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by (A) ∂u/∂x = 0 (B) ∂(ρu)/∂x = 0 (C) (∂u/∂x) = - (∂ρ/∂t) (D) ∂ρ/∂t = 0

Description : For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by (A) ∂u/∂x = 0 (B) ∂(ρu)/∂x = 0 (C) (∂u/∂x) = - (∂ρ/∂t) (D) ∂ρ/∂t = 0

Last Answer : (A) ∂u/∂x = 0

If Cv is the coefficient of consolidation, is the time and is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by (A) Tv = d²/Cv t (B) Tv = t²/d²Cv (C) Tv = Cv3 /d²t (D) Tv = Cv t/dt

Description : If Cv is the coefficient of consolidation, is the time and is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by (A) Tv = d²/Cv t (B) Tv = t²/d²Cv (C) Tv = Cv3 /d²t (D) Tv = Cv t/dt

Last Answer : Answer: Option D