1. If is a vector field and the magnitude has the unit of, then what is the unit of the quantity? →
A. → A ∣ ∣ m−2 → ∇ (→ ∇ ⋅ → A)B. m−4C. m−3D. m−2
2. Parietal placentation is found in which pair of plants?
A. Gourd-CucumberB. Water-lily-LotusC. China-rose-DaturaD. Paddy-Coriander
3. Which one is Charles’ law?
A. P ∝ 1 V (at constant T )B. V ∝ 1 T (at constant T )C. V ∝ T (at constant P )D. P ∝ T (at constant V )
4. Which relation is correct?
A. τ = I 2αB. τ = √IαC. τ = 1 αD. τ = Iα
5. Which one is produced by Hoffman’s degradation reaction?
A. primary amineB. secondary amineC. acid amineD. none
6. If light of wavelength falls on a platinum surface, then electrons start to emit. What is the work function of platinum? [ ] 1.967 × 10−7m h = 6.63 × 10−34Js
A. 9.9 × 10−18 JB. 8.8 × 10−17 JC. 1.01 × 10−18 JD. 2.01 × 10−19 J W0 = hc λ = 1.01 × 10−18 J