Which one of the following plants keeps its stomata open during the night and close during the day?

• Water-lily

• Cactus

• Cycas

• Orchid

Which equation shows the reaction of photosynthesis?

• CO₂ + H₂O → CH₂O + O₂

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ + 6H₂O

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

• C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

The meaning of unification of teaching skills is

• To use all teaching skills in one lesson

• To choose proper teaching skills in one lesson

• To use more helpful teaching aid in one lesson

• None of the above

Which of the following is not included in affective aspect?

• Receiving

• Organisation

• Valuing

• Analysis

15.

The first thing which is consider in lesson plan is

• Objective

• Pattern

• Syllabus

• Home-work

The values of science for nature is

• Possibility

• Reality

• Interim

• Uncertainty

The quality of creative students is

• Lack of flexibility

• Anxious

• Unaware about problem

• Lack of intelligence

The change in temperature of a body is 50°C. The change in temperature on the Kelvin scale is

• 50 K

• 323 K

• 122 K

• 70 K

Three-wire of resistance 1Ω, 2Ω, and 3Ω respectively are connected in 'parallel'. The equivalent resistance of the circuit is

• $\frac{6}{11}\mathrm{\Omega }$

• $\frac{11}{6}\mathrm{\Omega }$

• 6Ω

• $\frac{1}{6}\mathrm{\Omega }$

The relation between the speed of sound (v) and absolute temperature (T) in gas is

• v ∝ T

• $\mathrm{v} \propto \sqrt{\mathrm{T}}$

• $\mathrm{v} \propto \frac{1}{\mathrm{T}}$

• $\mathrm{v} \propto \frac{1}{\sqrt{\mathrm{T}}}$