Physics
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PH 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 55–57 of 65. Imported answers require review unless explicitly marked reviewed.
Question 55
Open questionPHMSQ2 marksNeeds review
A symmetric rigid body has moment of inertia
about its principal axes 1, 2, and 3, respectively, with
and
. It is rotating in space with no torque on it so that its angular momentum
is constant. Let
be the components of its angular velocity along the principal axes 1, 2, and 3, respectively. Which of the following quantities is/are constant during the motion of this rigid body?Your answerSelect all correct options. You can choose more than one.
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 56
Open questionPHMSQ2 marksNeeds review
An
particle moves towards a fixed nucleus carrying charge
, with initial speed
and impact parameter
. Starting from a large distance from the nucleus, its distance of closest approach is
and its speed there is
. Then which of the following options is/are correct? (
and
)Your answerSelect all correct options. You can choose more than one.
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 57
Open questionPHNAT2 marksNeeds review
Consider a particle of mass
kg and charge
C in a uniform electromagnetic field
,
. The particle is released from the coordinates
at time
. Starting from initial speed zero, it comes back to the
-axis for the first time at time
. The value of
in seconds (rounded off to two decimal places) is ____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