The correct choice is A Bacteria congregate in these areas because these locations had the most oxygen releasedEngelmann performed his experiment by place oxygen love bacteria ~ above the alga and also illuminating it v light that had actually been passed through a prism. The observed the bacteria were concentrated in the area wherein red and blue light fell. Their clumping permitted him to check out which regions had the highest possible concentration of oxygen. That concluded the the most photosynthetically active regions will have actually the highest concentrations that bacteria. Therefore, the bacteria built up in the areas of red and also violet light, showing that this wavelengths of light created the most photosynthetic activity.

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P and also Q space aqueous services of salt chloride and sodium hydroxide, respectively. I beg your pardon of these will turn:(a) blue litmus red?(b) red litmus blue?
Three light rays red (R), eco-friendly (G) and also blue (B) are event on the right angled prism alphabet at challenge ab. The refractive indexes of product of prism for red ,green and also blue wavelengths room respectively 1.39, 1.44 and 1.47. Trace the course of this rays reasoning out of the distinction in their behaviour.
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A p-n photodiode is fabricated from a semiconductor v band gap of 2.8 eV. Have the right to it finding a wavelength of 6000 nm?
The electric field components due come a fee inside the cube of next 0.1 m are shown in figure.where, Ex=α, whereby α = 500 N/C-m, Ey = 0, Ez=0.
A beam of irradiate converges come a allude P. A lens is placed in the path of the convergent beam 12 centimeter from P. At what suggest does the beam converge if the lens is :(a) a convex lens that focal length 20 cm, (b) a concave lens that focal size 16 cm.
The primary coil of one idea step up transformer has actually 100 turns and change ratio is likewise 100. The entry voltage and also power room respectively 220 V and also 1100 W calculation (2M)

A storage battery that emf 8.0 V and internal resistance 0.5Ω is being charged through a 120 V dc supply utilizing a series resistor that 15.5Ω. What is the terminal voltage of the battery throughout charging? What is the objective of having actually a collection resistor in the charging circuit?


A p-n photodiode is fabricated from a semiconductor v band gap of 2.8 eV. Have the right to it detect a wavelength of 6000 nm?
The electric field components due come a charge inside the cube of next 0.1 m are displayed in figure.where, Ex=α, whereby α = 500 N/C-m, Ey = 0, Ez=0.
A beam of irradiate converges come a point P. A lens is put in the path of the convergent beam 12 centimeter from P. At what point does the beam converge if the lens is :(a) a convex lens that focal length 20 cm, (b) a concave lens that focal size 16 cm.
The primary coil of one idea step up transformer has 100 turns and transformation ratio is additionally 100. The input voltage and also power are respectively 220 V and also 1100 W calculation (2M)

A warehouse battery that emf 8.0 V and also internal resistance 0.5Ω is being charged through a 120 V dc supply using a collection resistor of 15.5Ω. What is the terminal voltage that the battery during charging? What is the function of having actually a collection resistor in the charging circuit?


A p-n photodiode is fabricated indigenous a semiconductor with band gap of 2.8 eV. Deserve to it detect a wavelength of 6000 nm?
The electric field contents due come a fee inside the cube of next 0.1 m are displayed in figure.where, Ex=α, whereby α = 500 N/C-m, Ey = 0, Ez=0.

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A beam of irradiate converges to a allude P. A lens is inserted in the route of the convergent beam 12 cm from P. At what allude does the beam converge if the lens is :(a) a convex lens the focal size 20 cm, (b) a concave lens that focal size 16 cm.