A jet airplane travelling at the speed of 500 kmh^-1 ejects the burnt gases at the speed of 1400 kmh^-1 relative to the jet airplane. Bissoy Answers

Earth receives 1400 `W//m^(2)` of solar power. If all the solar energy falling on a lens of area `0.2m^(2)` is focussed onto a block of ice of mass 2.

Heat received per second `=(1400)(0.2)=280J` Required heat for meting of the block=(0.28) `(3.3xx10^(5))=9.24xx10^(4)J` Required time `(9.24xx10^(4))/(280xx60)=5.5` minutes.

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Intensity of sunlight on the surface of the earth is `I = 1400 W//m^(2)` (neglecting atmospheric absorption). (a) Find the Wattage of the Sun. (b) Ass

Correct Answer - (a) `3.96 xx 10^(26) W` , (b) `1.19 xx 10^(45)` (c) `4.4 xx 10^(9) kg//s`.

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An iron ring having 500 turns of wire and mean diameter of 12 cm carries a current of 0.3 A. The relative permeability of iron is 600. What is the mag

Correct Answer - `0.3 Wbm^(-1) 397.9 A "turns" m^(-1), 0.2995 Wbm^(-2)`

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Malwa culture – 1800 B.C. ,Early Jorwe culture – 1400 B.C. ,Ahar culture – 4000 B.C.E.

(a) Ahar culture – 4000 B.C.E. (b) Savalda culture – 2000 B.C.E. (c) Malwa culture – 1800 B.C.E. (d) Early Jorwe culture – 1400 B.C.E

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Late Jorwe Culture – 1000-700 B.C.E. , Kutch – Saurashtra was abandoned by 1900 B.C.E. , Early Jorwe Culture – 1400-1000 B.C.E.

(a) Kutch – Saurashtra were abandoned by 1900 B.C.E. (b) Malwa Culture – 1600-1400 BCE (c) Early Jorwe Culture – 1400-1000 B.C.E. (d) Late Jorwe Culture – 1000-700 B.C.E.

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An aeroplane A, is travelling in a straight line with a velocity of 300 km/hr with respect to Earth. Another aeroplane B, is travelling

Given: vA = 300 km/hr, vB = 350 km/hr, vCA = 100 km/hr To find: (i) Velocity of plane A relative to B (vA – vB) (ii) Velocity of aeroplane C (vC) Formula: (i) vAB = vA – vB (ii) vCA = vC –...

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A jet airplane travelling at the speed of 500 kmh^-1 ejects the burnt gases at the speed of 1400 kmh^-1 relative to the jet airplane.

Correc Option is (D) 900 \(kmh^{-1}\) \(v_p = -500\) km/h \(V_{gp} = 1400\) km/h The speed of burnt gas with respect to the jet airplane is \(\overrightarrow v_{gp} = \overrightarrow v_g - \overrightarrow v_p\) \(1400 = v_g +...

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A jet is releasing water at the rate of 6 kg/see with speed of 4 m/sec. Now this water strikes a block of mass 10 kg. find the force exerted on block

Correct Answer - `(f=24N,a=2.4m//sec^(2))`

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World known to Europeans in 1400 known as

World known to Europeans in 1400 known as Genose

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Refractive index of glass relative to water is 9/8. The refractive index of water relative to glass is …………………

Correct option is D) 8/9

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A jet airplane travelling at the speed of 500 kmh^-1 ejects the burnt gases at the speed of 1400 kmh^-1 relative to the jet airplane.

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