IIT-JEE 2005 Mains | Units & Measurements Question 43 | Physics

IIT-JEE 2005 Mains

MCQ (Single Correct Answer)

-1

The side of a cube is measured by vernier callipers (10 divisions of a vernier scale coincide with 9 divisions of main scale, where 1 division of main scale is 1 mm). The main scale reads 10 mm and first division of vernier scale coincides with the main scale; Mass of the cube is 2.736 g. Find the density of the cube in appropriate significant figures.

$$5\times10^3$$

$$7\times10^4$$

$$2.66\times10^3$$

$$3.45\times10^3$$

IIT-JEE 2004 Screening

MCQ (Single Correct Answer)

-0.5

A wire of length $$l = 6 \pm 0.06$$ cm and $$r = 0.5 \pm 0.005$$ cm and mass $$m = 0.3 \pm 0.003$$ gm. Maximum percentage error in density is

6.8

IIT-JEE 2004 Screening

MCQ (Single Correct Answer)

-0.5

Pressure depends on distance as, $$P = {\alpha \over \beta }\exp \left( { - {{\alpha z} \over {k\theta }}} \right)$$, where $$\alpha $$, $$\beta $$ are constants, z in distance, k is Boltzman's constant and $$\theta $$ is temperature. The dimention of $$\beta $$ are

[M⁰L⁰T⁰]

[M^-1L^-1T^-1]

[M⁰L²T⁰]

[M^-1L¹T²]

IIT-JEE 2003 Screening

MCQ (Single Correct Answer)

-0.5

A cube has a side of length 1.2 ✕ 10^-2 m. Calculate its volume.

1.7 ✕ 10^-6 m³

1.73 ✕ 10^-6 m³

1.70 ✕ 10^-6 m³

1.732 ✕ 10^-6 m³

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