C-10-Q011mediumsingle_mcq

"Normal line" with respect to the horizontal plane means a line that is—

aparallel to the ground
bperpendicular to the ground
cslanted to the ground
dlying on the ground

ব্যাখ্যা

A normal line is one that meets a surface at a right angle, so a line normal to the horizontal plane stands perpendicular ( $90^\circ$ ) to the ground.

এই অধ্যায়ের আরও প্রশ্ন

C-10-Q012A flagpole standing erect on level ground best represents a—
C-10-Q013The angle formed at the observer's eye by the line of sight to a point above the horizontal line is called the
C-10-Q014The angle of elevation is always measured from the—
C-10-Q015In the textbook figure where lies on the horizontal line and lies above , the angle of elevation of at is—
C-10-Q016Looking up at the top of a tower from a point on the ground produces an angle of—
C-10-Q017The theoretical maximum value of an angle of elevation is—
C-10-Q018If the angle of elevation of an object is , the object lies on the—
C-10-Q019As an observer moves towards the foot of a tower (on level ground), the angle of elevation to its top—
C-10-Q020The angle of elevation of an object is when the object is—
C-10-Q021If the sun is directly overhead, the angle of elevation of the sun is—

Chapter 10: Distance and Elevation — সব প্রশ্ন দেখুন (160টি) →