MEDIUM
UPSC CDS
IMPORTANT
Earn 100
The plant growth regulators are small, simple molecules of diverse chemical composition. They are
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Important Questions on UPSC CDS (I) Previous Year Paper 2017
MEDIUM
UPSC CDS
IMPORTANT
Consider the electromagnetic radiations having wavelengths nm, nm and nm. Which wavelength(s) of the following can make a visual sensation to a human eye?
MEDIUM
UPSC CDS
IMPORTANT
A copper wire of radius r and length has a resistance of R. A second copper wire with radius r and length is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be
MEDIUM
UPSC CDS
IMPORTANT
A parallel-plate capacitor of capacitance is made using two gold plates. Another parallel-plate capacitor of capacitance is made using two aluminium plates with the same plate separation, and all four plates are of the same area. If pg and pa are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct?
MEDIUM
UPSC CDS
IMPORTANT
A photon of X-ray has energy of keV. A photon of visible radiation has energy of eV. In this context, which one of the following statements is not correct?
EASY
UPSC CDS
IMPORTANT
The optical phenomenon that is primarily responsible for the observation of a rainbow on a rainy day is_____.
EASY
UPSC CDS
IMPORTANT
With regard to 'Project Tiger', which one of the following statements is not correct?
EASY
UPSC CDS
IMPORTANT
Which one of the following is not a biosphere reserve of India?
EASY
UPSC CDS
IMPORTANT
Which one of the following statements with regard to the Indian Railways is not correct?
