Question Discussion & Solution

The logic followed here is:-

The first two words are antonyms of each other.

'Always' is antonym of 'Never'.

Similarly,

The fourth word should be the antonym of the third word.

'Down' is antonym of 'Up'.

So, Never : Always :: Up : Down.

Hence, the correct answer is "Down".

1^st letter: increase by - 8, - 4, - 2, - 1

P - 8→ H - 4→ D - 2 → B - 1 → A

2^nd letter: second letter increase by + 2

K + 2→ M +2 → O + 2 → Q + 2 → S

3^rd letter: Decrease by - 1

R - 1→ Q – 1 → P - 1 → O – 1 → N

The correct answer is option 2 i.e 19.

• Potassium is a member of the alkali group of the periodic table.
  • Symbol: K.
  • Atomic number: 19.
  • Belongs to group 1 in the periodic table.
  • First isolated in 1807 by Humphry Davy.
  • Sodium and Potassium are the elements known as soft metals(can cut with a knife with little force).
  • Potassium metal is kept in kerosene due to its high reactivity with water.
  • Potassium bicarbonate is the chemical used in fire extinguishers.
  • Potassium is the most common radioisotope in the human body.
  • Potassium is the second least dense metal after lithium.
• Atomic Number 17: Chlorine.
• Atomic Number 18: Argon.
• Atomic Number 20: Calcium.

The correct answer is ​Myopia.

Key Points

• Nearsightedness (myopia) is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry.
• It occurs when the shape of your eye causes light rays to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.
• A Concave lens (diverging lens) is used by people suffering from myopia.

Additional Information 

• Far-sightedness, also known as long-sightedness, hypermetropia, or hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred.
  • This blurred effect is due to incoming light being focused behind, instead of on, the retina wall due to insufficient accommodation by the lens.
• Night blindness is a type of vision impairment also known as nyctalopia.
  • People with night blindness experience poor vision at night or in dimly lit environments.
  • Although the term “night blindness” implies that you can't see at night, this isn't the case.
• Astigmatism: This defect arises due to the difference in the radius of curvature of the cornea in the different planes
  • The cylindrical lens is used by people suffering from Astigmatism.

The correct answer is Visakha.

• In Visakha, case reference does the 'Sexual Harassment of Women at Workplace' Act enshrines and encompasses almost all the guidelines given.

Key Points

• ​Sexual Harassment of Women at Workplace Act
  • Workplace sexual harassment in India was for the very first time recognized by the Supreme Court of India (“Supreme Court”) in its landmark judgment of Vishaka v. State of Rajasthan (“Vishaka Judgment”),
  • Here the Supreme Court framed certain guidelines and issued directions to the Union of India to enact an appropriate law for combating workplace sexual harassment

​Additional Information

• Workplace sexual harassment is a form of gender discrimination that violates a woman’s fundamental right to equality and right to life, guaranteed under Articles 14, 15 and 21 of the Constitution of India (Constitution).​