यह उपकरण नया है।

Here is the breakdown:

• यह = this
• उपकरण = device / tool / equipment / instrument
• नया = new
• है = is

So the structure is basically:

• यह = subject
• उपकरण = noun
• नया = adjective describing the noun
• है = linking verb, like is

Hindi often puts the adjective before है, so the sentence literally follows the pattern:

this device new is

Because उपकरण is a masculine singular noun.

In Hindi, many adjectives change form to match the gender and number of the noun they describe.

For the adjective new:

• नया = masculine singular
• नई = feminine singular
• नए = masculine plural, and also some oblique uses

Since उपकरण is treated as masculine singular, the correct form is नया.

For comparison:

• यह उपकरण नया है। = This device is new.
• यह मशीन नई है। = This machine is new.

Here मशीन is feminine, so the adjective becomes नई.

Unfortunately, in Hindi you often have to learn a noun’s gender along with the noun itself.

There are some patterns that help, but they are not always reliable. उपकरण is simply a noun that is treated as masculine.

A good habit is to memorize new nouns together with an adjective or verb form, for example:

• नया उपकरण = new device

That helps you remember the gender naturally.

Hindi does not normally use articles the way English does.

English says:

• this device
• the device
• a device

Hindi usually just uses the noun directly, and the meaning comes from context.

So:

• यह उपकरण can mean this device
• उपकरण by itself can sometimes mean a device, the device, or just device/equipment, depending on context

This is very normal in Hindi.

Hindi and English organize sentences differently.

English says:

• This device is new.

Hindi says:

• यह उपकरण नया है।
• literally: This device new is.

Hindi usually places:

1. subject first
2. descriptive word or complement before the verb
3. the verb at the end

So this sentence follows a very common Hindi pattern:

[subject] + [description] + [is]

You will see the same pattern in many simple sentences:

• यह घर बड़ा है। = This house is big.
• वह लड़का छोटा है। = That boy is small.

यह usually means this, especially for something near the speaker.

It can also sometimes work like he, she, or it in certain contexts, especially in more formal Hindi grammar descriptions. But for a beginner, the most helpful meaning here is simply this.

Examples:

• यह किताब = this book
• यह अच्छा है। = this is good / it is good

In everyday speech, यह is very often pronounced more like ये.

In careful or formal Hindi, यह is often taught as yah.

But in everyday speech, many speakers pronounce it more like yeh.

So you may hear:

• यह उपकरण नया है spoken roughly as yeh upkaran nayā hai

This is completely normal. As a learner, you should be able to recognize both the written form यह and the common spoken pronunciation yeh.

है is the present-tense form of to be for a singular subject in this kind of sentence. It corresponds to is.

So:

• नया है = is new

Compare:

• यह उपकरण नया है। = This device is new.
• ये उपकरण नए हैं। = These devices are new.

Notice that singular uses है, while plural uses हैं.

Because the subject here is singular:

• यह उपकरण = this device

So the verb is singular too:

• है = is

If the noun were plural, you would use हैं:

• ये उपकरण नए हैं। = These devices are new.

So:

• singular → है
• plural → हैं

Yes. उपकरण is a somewhat broad and fairly formal word.

Depending on context, it can mean:

• device
• tool
• instrument
• equipment
• apparatus

The exact English translation depends on what kind of object is being discussed.

So in a technical context, यह उपकरण नया है। could mean:

• This device is new.
• This piece of equipment is new.
• This instrument is new.

It is grammatically correct and fairly neutral to formal.

The word उपकरण sounds a bit formal or technical. In everyday conversation, people might choose a more specific word depending on the object, such as:

• मशीन = machine
• औज़ार = tool
• डिवाइस = device
• सामान = equipment/stuff, depending on context

So the sentence is natural, especially in written Hindi, technical Hindi, or careful speech.

You would change both the demonstrative, the adjective, and the verb:

• ये उपकरण नए हैं।

Breakdown:

• ये = these
• उपकरण = devices/equipment
• नए = new (masculine plural)
• हैं = are

So the changes are:

• यह → ये
• नया → नए
• है → हैं

In standard Hindi, है is normally included in a full present-tense sentence like this.

So the standard sentence is:

• यह उपकरण नया है।

You may sometimes hear people omit है in very informal speech, headings, labels, notes, or poetic style, but learners should treat है as necessary here.

So the safest rule is:

• Use the verb in normal sentences.

Yes, but it means something slightly different in emphasis.

• यह उपकरण नया है। = This device is new.
  Focus: the device has the quality new.

• यह नया उपकरण है। = This is a new device.
  Focus: identifying what kind of thing this is.

So both are correct, but the structure changes what is being emphasized:

• noun + adjective + है → the noun is being described
• adjective + noun inside the noun phrase → the noun itself is being identified as a new device