In the northern hemisphere, the longest day of the year normally occurs in the:

Answer: B. The longest day in the Northern Hemisphere occurs in the SECOND HALF OF JUNE. The SUMMER SOLSTICE in the Northern Hemisphere falls on JUNE 20 OR 21 each year (occasionally June 22 due to leap year effects). This is the day when the Sun is directly overhead the Tropic of Cancer and the Northern Hemisphere experiences its longest daylight duration of the year. For places north of the Tropic of Cancer (including all of India, Europe, North America), the longest day is around June 21. North of the Arctic Circle, the Sun does not set at all on this date (midnight sun). So the longest day always falls in the second half of June, specifically around June 21. Distractors fail: (A) Early June would be before the solstice; not the longest day. (C) Early July is past the solstice; days are already getting slightly shorter. (D) Late July is well past the solstice. Source: NCERT Class 11 Fundamentals of Physical Geography Ch 3 (Motions of the Earth).