1
JEE Main 2020 (Online) 5th September Morning Slot
+4
-1
A physical quantity z depends on four observables
a, b, c and d, as z = $${{{a^2}{b^{{2 \over 3}}}} \over {\sqrt c {d^3}}}$$. The percentages of error in the measurement of a, b, c and d are 2%, 1.5%, 4% and 2.5% respectively. The percentage of error in z is :
A
13.5 %
B
14.5%
C
16.5%
D
12.25%
2
JEE Main 2020 (Online) 4th September Evening Slot
+4
-1
A quantity x is given by $$\left( {{{IF{v^2}} \over {W{L^4}}}} \right)$$ in terms of moment of inertia I, force F, velocity v, work W and Length L. The dimensional formula for x is same as that of :
A
Coefficient of viscosity
B
Force constant
C
Energy density
D
Planck's constant
3
JEE Main 2020 (Online) 4th September Morning Slot
+4
-1
Dimensional formula for thermal conductivity is (here K denotes the temperature):
A
MLT–3K–1
B
MLT–2K–2
C
MLT–2K
D
MLT–3K
4
JEE Main 2020 (Online) 3rd September Evening Slot
+4
-1
Amount of solar energy received on the earth’s surface per unit area per unit time is defined a solar constant. Dimension of solar constant is :
A
MLT–2
B
ML0T–3
C
M2L0T–1
D
ML2T–2
EXAM MAP
Medical
NEET