What will be the value of n & l of the followings?
1. 4s1 2. 5d1 3. 4f1 .
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Differentiate between the followings: Ubiquitous and localised resources
Ubiquitous resources are available everywhere, while localized resources are available at select locations.
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Match the followings (a) Land use
Answer:(a) → 3, (b) → 4, (c) → 1, (d) → 2
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The value of a for which the sum of the squares of the roots of the equation x^2 – (a – 2)x – a – 1 = 0 assume the least value is
(b) : Let f (a) = α2 + β2 = (α + β)2 – 2αβ = (a – 2)2 + 2(a + 1) ∴ f '(a) = 2(a – 2) + 2 For...
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The magnetic field energy in an inductor changes from maximum value to minimum value in 5'0ms when connected to an AC source.
(b) Frequency of the source is 50Hz
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The peak value of e.m.f. in a.c. is E0. Write its (i) rms (ii) average value over a complete cycle.
E0 = peak value of emf (i) rms value [Erms] = E0/√2 (ii) average value [Eav] = zero
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∆iH1 value of Mg is more as compared to that of Na while its ∆iH2 value is less. Explain.
∆iH1 value of Mg is more than that of Na due to greater symmetry and smaller size. But ∆iH2 value of Na is higher because Na+ ion has the configuration...
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In order to win the Grand Slam in Tennis, a player must win which one of the followings groups of tournaments?
(d) There are four grand slam tournaments in Tennis–Australian Open, U.S. Open, Wimbledon and French Open. So a player has to win any of them to win grand slam and...
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Selene-1, the lunar orbiter mission belongs to which one of the followings?
(c) Mitsubishi Heavy Industries, Ltd. and the Japan Aerospace Exploration Agency (JAXA) launched the Lunar Orbit Explorer "KAGUYA" (SELENE) at on September 14, 2007, from the Tanegashima Space Center. The...
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Answer the followings. (i) What are the three qualities that played a major role in the author’s climb?
Endurance, persistence and will power are the three qualities that played a major role in the author’s climb.
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Select saturated hydrocarbons from the followings: C3H6; C5H10; C4H10; C6H14; C2H4.
C4H10; C6H14.
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