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Which of the following is a line focus collector used in a distributed power system?

Which of the following is a line focus collector used in a distributed power system? Correct Answer Linear fresnel reflector

Linear fresnel reflector is a line focus collector. Parabolic mirrors and convex mirrors may reflect sunlight but they may not be line focused collector. Lenses are not used to collect sunlight in a distributed power system.

Related Questions

Given below are four statements- (p) The second principal focus of a lens is the position of the object, real or virtual whose image is at infinity. (q) The second principal focus of a lens is the position of the image, real or virtual whose object is at infinity. (r) The first principal focus of a lens is the position of the object, real or virtual whose image is at infinity. (s) The first principal focus of a lens is the position of the image, real or virtual whose object is at infinity.  Examine the above statements and find which among then are correct. 
Given that the collector power dissipation is 300 mW, what is the value of collector current for the collector to emitter voltage = 12 V?
Given that the collector power dissipation is 300 mW, what is the value of collector to emitter voltage for collector current = 50 mA?
For a narrow base PNP BJT, the excess minority carrier concentrations (ΔnE for emitter, ΔpB for base, ΔnC for collector) normalized to equilibrium minority carrier concentrations (nE0 for emitter, pB0 for base, nC0 for collector) in the quasi-neutral emitter, base and collector regions are shown below. Which one of the following biasing modes is the transistor operating in?
For transistor action (a) Base, emitter, and collector regions should have similar size and doping concentrations. (b) The base region must be very thin and lightly doped. (c) The emitter-base junction is forward biased and the base-collector junction is reverse biased. (d) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct?
Given collector resistance = 2kΩ, load resistance = 5kΩ, collector capacitance = 1μF, emitter capacitance = 20μF, collector current = 2mA, source resistance = 2kΩ. If the effect of blocking capacitor is ignored, find the applicable cut-off frequency.
Choose the right option among the alternatives – A transistor conducts in its forward direction when its collector/emitter/base, is positive with respect to its collector/emitter/base, and when a turn-on voltage or current signal is applied to its collector/emitter/base.
A trapezium is formed by joining two parallel line segments of unequal length. The arrangement of both lines is such that the excessive length of the longer parallel line segment is equally distributed on both sides of the end point of shorter line segment. The non-parallel line segments are of equal length and the length of parallel line segments in 10 cm and 18 cm. What is the area of trapezium if the perimeter is 38cm?
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the suggested course of action logically follow (s) for pursuing. Statement: Drugmaker Mankind Pharma is looking at achieving a turnover of USD 1 billion by 2021 from the present Rs 5,200 crore. The company is also looking at increasing its exports substantially to USD 100-150 USD million in the next three years from the present USD 10 million.  Courses of action: I. Mankind Pharma’s current turnover is Rs 5,200 crore and will touch USD 1 billion by 2021 as we target higher growth in both the domestic as well as international markets. II. Mankind Pharma will continue to focus on domestic market which is still growing at a CAGR of 8-10 per cent with special focus on regions where it is not strong and there is tremendous potential to grow. It will continue to focus on chronic segment/lifestyle diseases which are growing markets here and generates long-term prescriptions.  III. It has a significant presence in Southeast Asia, Africa and the CIS markets. It has recently ventured into the US market with the filing of 12-15 ANDAs every year.
Which of the following statements are true? (i) The principal focus of a converging lens is real. (ii) The principal focus of a diverging lens is virtual. (iii) The principal focus of a lens is always along the principal axis.