Explanation

EMF = N × B × Area × ω

Solve for ω → ω = 12 ÷ (200 × 0.05 × 0.0256) ≈ 47 rad/s

Explanation

Cars in a single lane slow down and crowd together, similar to molecules in a compressed fluid.

They adjust spacing and speed like fluid molecules under compression.

Explanation

Number of possible input combinations = 2𝑛, where n = number of inputs.

For 4 inputs: 2⁴ = 16 combinations.

Explanation

Rotational inertia matters: Sphere has the lowest moment of inertia (I = 2/5 MR²) among sphere, disc (I = 1/2 MR²), and hoop (I = MR²), so it accelerates fastest.

Energy distribution: Less energy goes into rotation → more into translational motion, giving higher speed at the bottom.

Explanation

2 kg absorbed 10 J → 5 J/kg

1 rad = 0.01 J/g = 10 J/kg → 5 ÷ 0.01 = 500 rad.

Explanation

P₂O₅ is a white hygroscopic powder.

It sublimes at 360°C without melting.

Its hygroscopic nature allows it to absorb water and form phosphoric acid.

Explanation

For the rate equation Rate = k[A]²[B], the exponents of the concentration terms indicate the order of the reaction with respect to each reactant. 

For reactant A, the exponent is 2. Therefore, the reaction is second-order with respect to A.

For reactant B, the exponent is 1 (as [B] is understood to be [B]¹).

Therefore, the reaction is first-order with respect to B. 

Explanation

Central metal = Pt (oxidation state IV)

Ligands: 3 NH₃ (ammine), Cl (chloro), Br (bromo), NO₂ (nitro)

Anionic complex → suffix “platinate”

Counter ion = Cl⁻ → “chloride”

IUPAC name combines all → Triamminechlorobromonitroplatinate(IV) chloride.

Explanation

SnCl₂ has 3 electron pairs around Sn (2 bonding + 1 lone pair).

According to VSEPR theory, lone pair repels more, giving a bent/angular shape.

Bond angle is less than 120°.

Explanation

Electron affinity (EA) measures the tendency to gain an electron.

Nitrogen has a half-filled 2p³ configuration, which is stable, so it reluctant to gain an electron → lowest EA.