Question : On a clean glass plate, a drop of water spreads to form a thin layer, whereas a drop of mercury remains almost spherical because:
Option 1: mercury is a metal
Option 2: the density of mercury is greater than that of water
Option 3: the cohesion of mercury is greater than its adhesion with glass
Option 4: the cohesion of water is greater than its adhesion with glass
Latest: SSC CGL Tier 1 Result 2024 Out | SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL Tier 1 Scorecard 2024 Released | SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: the cohesion of mercury is greater than its adhesion with glass
Solution : The correct option is the cohesion of mercury is greater than its adhesion with glass .
On a clean glass plate, the behaviour of a drop of water spreading and a drop of mercury remaining almost spherical is related to the balance of cohesion and adhesion forces. Mercury's cohesive forces (attraction between mercury molecules) are stronger than its adhesive forces (attraction between mercury and the glass surface).
Candidates can download this ebook to know all about SSC CGL.
Result | Eligibility | Application | Selection Process | Preparation Tips | Admit Card | Answer Key
Question : Assume that a drop of water is spherical and that its diameter is one-tenth of a cm. A conical glass has a height equal to the diameter of its rim. If 32,000 drops of water fill the glass completely, then the height of the glass (in cm) is:
Question : Alcohol is more volatile than water because ________ is lower than water.
Question : Mercury is a:
Question : Which among the following is liquid non-metal?
Question : During the motion of a projectile fired from the Earth's surface, ___________.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile