Physics
2021 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PH 2021 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 10–12 of 65. Imported answers require review unless explicitly marked reviewed.
Question 10
Open questionGAMCQ2 marksNeeds review
In an equilateral triangle PQR, side PQ is divided into four equal parts, side QR is divided into six equal parts and side PR is divided into eight equal parts. The length of each subdivided part in cm is an integer.
The minimum area of the triangle PQR possible, in cm
, isYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 1
Open questionPHMCQ1 markNeeds review
Choose the graph that best describes the variation of dielectric constant (
) with temperature (
) in a ferroelectric material.(
is the Curie temperature)Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 2
Open questionPHMCQ1 markNeeds review
A matter wave is represented by the wave function
where
is a constant. The unit vector representing the direction of propagation of this matter wave isYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer