12th Class Mathematics MCQS Vectors Online Test 3

3-cu-3-ei-3-c-2-fu-3-e-2-3-cu-3-ej-3-c-2-fu-3-e-x-3-3-cu-3-ek-3-c-2-fu-3-e-3-d-3-a_-_6,3-cu-3-ei-3-c-2-fu-3-e-28-3-cu-3-ej-3-c-2-fu-3-e-x-3-cu-3-ek-3-c-2-fu-3-e-29-is-equal-to-3-a_-_1,3-cu-3-ei-3-c-2-fu-3-e-3-cu-3-ej-3-c-2-fu-3-e-3-d_-_1,3-cu-3-ej-3-c-2-fu-3-e-28-3-cu-3-ek-3-c-2-fu-3-e-x-3-cu-3-ei-3-c-2-fu-3-e-29-is-equal-to_-_1,3-cu-3-ek-3-c-2-fu-3-e-x-3-cu-3-ei-3-c-2-fu-3-e-3-d-3-a_-_3-cu-3-ej-3-c-2-fu-3-e,Bxcys09m5A0Vhk4oGQTW,a-vector-whose-initial-and-terminal-point-is-same-is-called-3-a_-_null-vector,a-vector-with-magnitude-1-is-called-3-a_-_unit-vector,angle-between-the-vectors-3-cu-3-ei-3-c-2-fu-3-e-2-b-3-cu-3-ej-3-c-2-fu-3-e-26-amp-3-b-3-cu-3-ei-3-c-2-fu-3-e-3-cu-3-ej-3-c-2-fu-3-e-is-3-a_-_3-cimg-src-3-d-22-2-fimages-2-fmcqs-2-fall-math-2-fpie-over-2-png-22-3-e,if-3-cu-3-ea-3-c-2-fu-3-e-and-3-cu-3-eb-3-c-2-fu-3-e-are-two-non-zero-vectors-2-c-then-3-cu-3-ea-3-c-2-fu-3-e-x-3-cu-3-eb-3-c-2-fu-3-e-3-d-3-a_-_3-cu-3-e-b-3-c-2-fu-3-e-x-3-cu-3-ea-3-c-2-fu-3-e,if-3-cu-3-ei-3-c-2-fu-3-e-2-c-3-cu-3-ej-3-c-2-fu-3-e-2-c-3-cu-3-ek-3-c-2-fu-3-e-are-unit-vectors-then-3-cu-3-ek-3-c-2-fu-3-e-x-3-cu-3-ej-3-c-2-fu-3-e-3-d-3-a_-_3-cu-3-e-i-3-c-2-fu-3-e,if-3-cu-3-ei-3-c-2-fu-3-e-3-3-cu-3-ej-3-c-2-fu-3-e-2-b-3-cu-3-ek-3-c-2-fu-3-e-and-ce-bb-3-cu-3-ei-3-c-2-fu-3-e-2-b-6-3-cu-3-ej-3-c-2-fu-3-e-2-3-cu-3-ek-3-c-2-fu-3-e-are-parallel-2-c-then-27-ce-bb-27-3-a_-_2,if-3-cu-3-eu-3-c-2-fu-3-e-2-c-3-cu-3-ev-3-c-2-fu-3-eand-3-cu-3-ew-3-c-2-fu-3-e-are-conterminous-edges-of-a-tetrahedron-then-volume-3-a_-_3-cimg-src-3-d-22-2-fimages-2-fmcqs-2-f-12th-2-fmath-2-f-12-math-07-036-002-png-22-3-e,if-3-cu-3-ev-3-c-2-fu-3-e-3-d-3-cu-3-ei-3-c-2-fu-3-e-2-b-3-cu-3-ej-3-c-2-fu-3-e-3-cu-3-ek-3-c-2-fu-3-e-then-3-a-7-c-3-cu-3-ev-3-c-2-fu-3-e-7-c_-_e-2-88-9-a-3,if-ce-b-1-2-c-ce-b-2-2-c-ce-b-3-are-direction-cosines-of-a-vector-then-cos-3-csup-3-e-2-3-c-2-fsup-3-e-ce-b-1-2-b-cos-3-csup-3-e-2-3-c-2-fsup-3-e-ce-b-2-2-b-cos-3-csup-3-e-2-3-c-2-fsup-3-e-ce-b-3-3-d-3-a_-_1,if-p-3-d-28-a-3-csub-3-e-1-3-c-2-fsub-3-e-2-c-b-3-csub-3-e-1-3-c-2-fsub-3-e-29-q-28-a-3-csub-3-e-2-3-c-2-fsub-3-e-2-c-b-3-csub-3-e-2-3-c-2-fsub-3-e-29then-28-pq-29-is-3-a_-_28-a-3-csub-3-e-2-3-c-2-fsub-3-e-a-3-csub-3-e-1-3-c-2-fsub-3-e-29-3-cu-3-ei-3-c-2-fu-3-e-2-b-28-b-3-csub-3-e-2-3-c-2-fsub-3-e-b-3-csub-3-e-1-3-c-2-fsub-3-e-29-3-cu-3-ej-3-c-2-fu-3-e,if-p-3-d-282-2-c-3-29-and-q-3-d-286-2-c-2-29then-pq-3-d-3-a_-_4-3-cu-3-ei-3-c-2-fu-3-e-1-3-cu-3-ej-3-c-2-fu-3-e,if-the-vector-3-cu-3-eu-3-c-2-fu-3-e-3-d-2-3-cu-3-ei-3-c-2-fu-3-e-2-b-4-3-cu-3-ej-3-c-2-fu-3-e-7-3-cu-3-ek-3-c-2-fu-3-e-and-3-cu-3-ev-3-c-2-fu-3-e-3-d-2-3-cu-3-ei-3-c-2-fu-3-e-2-b-6-3-cu-3-ej-3-c-2-fu-3-e-2-b-6-2-b-x-3-cu-3-ek-3-c-2-fu-3-e-are-perpendicular-2-c-then-x-3-d-3-f_-_4,length-of-the-vector-3-cu-3-ei-3-c-2-fu-3-e-2-b-2-3-cu-3-ej-3-c-2-fu-3-e-2-b-2-3-cu-3-ek-3-c-2-fu-3-e-is-3-a_-_3,magnitude-of-a-vector-2-i-2-b-3-i-2-b-4-k-is-3-a_-_e-2-88-9-a-29,the-direction-of-cosines-of-x-axis-are-3-a_-_1-2-c-0-2-c-0,the-unit-vector-of-2-3-cu-3-ei-3-c-2-fu-3-e-2-b-3-cu-3-ej-3-c-2-fu-3-e-3-a_-_3-cimg-src-3-d-22-2-fimages-2-fmcqs-2-f-12th-2-fmath-2-f-12-math-07-006-002-png-22-3-e,vector-product-of-two-vectors-is-a-3-a_-_vector-quantity