Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Finger Print Searcher -Police Department(CAT.NO:139/2020)' And exam conducted in the year 2021. And Question paper code was '103/2021'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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Gamma rays are
A) Extremely small and fast moving particles of matter
B) High speed positrons
C) Electromagnetic radiations
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D) High speed neutrons
Among the following which electromagnetic radiation has maximum wavelength ?
A) Ultraviolet B) Radio waves
C) X-rays D) Infrared
The half-life period of a radioactive element is 140 days. After 560 days, one gram
of the element will reduce to
A) 1/2g B) 1/4g
C) 1/8 و 0) 1/16 9
Splitting of spectral line when atoms are subjected to strong electric field is called
A) Stark effect B) Zeeman effect
C) Photoelectric effect D) Decay
Which of the following has the largest atomic radius ?
A) Li B) K
C) Ra D) Sr
Which among the following is the strongest acid ?
A) HF 8) HCl
C) HBr D) HI
Halogen which shows highest electropositive character is
A) F 8) |
©) Cl D) Br