A. nλ = 2d Sin θ
B. λ = d Sin 2θ
C. λ = 2d Sin 2θ
D. nλ = d Sin θ
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Related Mcqs:
- Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?
A. Only
B. Plus variable cost
C. Plus overhead cost
D. Plus selling expenses - Mild steel has _______________ crystal lattice structure?
A. Face centred cubic (fcc)
B. Body centred cubic (bcc)
C. Orthorhombic
D. Cubic - Closeness of packing is maximum in case of ____________________ crystal lattice?
A. Face centred
B. Simple cubic
C. Body centred
D. None of these - Out of the following, the lowest packing of atoms exists in ____________________ crystal lattice structure?
A. Hexagonal close, packed (hcp)
B. Face centred cubic (fcc)
C. Body centred cubic (bcc)
D. Simple cubic - Which of the following properties of a solid is not dependent on crystal imperfection ?
A. Ductility
B. Semi-conductivity
C. Melting point
D. Yield stress - The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T1 and T2 is given by_________________?
A. T1/(T1-T2)
B. T2/(T1-T2)
C. T1/T2
D. T2/T1 - In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is__________________?
A. More
B. Less
C. Equal
D. Much more - The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6) ?
A. 4.4
B. 5.6
C. 8.4
D. 2.4 - The property of material, by which a given amount of energy is absorbed by it, without plastic deformation, is called__________________?
A. Resilience
B. Toughness
C. Ductility
D. Impact strength - Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of________________?
A. Steel
B. Glass wood
C. Copper
D. Fireclay bricks
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