WB2008

Dimorphic chloroplasts are present in

Dimorphic chloroplasts are present in Options (a) Sugarcane(C₄) (b) Cotton (c) Pea (d) Mango Correct Answer: Sugarcane(C₄)Explanation:Sugarcane is C₄ plant.…

Which of the following substances has the highest elasticity?

Which of the following substances has the highest elasticity? Options (a) Steel (b) Copper (c) Rubber (d) Sponge Correct Answer:…

A wire is stretched under a force. If the wire suddenly snaps the temperature

A wire is stretched under a force. If the wire suddenly snaps the temperature of the wire Options (a) remains…

At what temperature will the rms speed of air molecules be double that of NTP?

At what temperature will the rms speed of air molecules be double that of NTP? Options (a) 519⁰C (b) 619⁰C…

Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units and 5 units

Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units and 5 units respectively. The rms…

Two point objects of masses 1.5 g and 2.5 g respectively are at a distance of 16 cm

Two point objects of masses 1.5 g and 2.5 g respectively are at a distance of 16 cm apart, the…

Which bacterium is used extensively as biopesticide?

Which bacterium is used extensively as biopesticide? Options (a) Bacillus subtilis (b) Streptococcus lactis (c) Bacillus thuringienesis (d) Lactobacillus acidophilus…

The radius of curvature of a convave mirror is 24 cm and the imager is magnified

The radius of curvature of a concave mirror is 24 cm and the imager is magnified by 1.5 times. The…

The weight of a body on surface of earth is 12.6 N. When it is raised to a height

The weight of a body on surface of earth is 12.6 N. When it is raised to a height half…

A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz.

A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz. The apparent frequency of…