(A) : Si and GaAs are preferred terials for solar cells (R): Energy gap of Si is 1.1eV and that of GaAs is 1.53eV which give maximu irradiance where as other materials like CdS or CdSe(E = 0.4eV) and give minimum irradiance.

(A) : Si and GaAs are preferred terials for solar cells (R): Energy ga

1.	(A) : Si and GaAs are preferred terials for solar cells (R): Energy gap of Si is 1.1eV and that of GaAs is 1.53eV which give maximu irradiance where as other materials like CdS or CdSe(E = 0.4eV) and give minimum irradiance.
Answer» Both 'A' and 'R' are true and 'R' is the CORRECT EXPLANATION of 'A' Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A' 'A' is true and 'R' is FALSE 'A' is false and 'R' is true ANSWER :A

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(A) : Si and GaAs are preferred terials for solar cells (R): Energy gap of Si is 1.1eV and that of GaAs is 1.53eV which give maximu irradiance where as other materials like CdS or CdSe(E = 0.4eV) and give minimum irradiance.

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